JP7486615B2 - Novel analogs of pterostilbene amino acid-containing carbonates for the treatment of nonalcoholic fatty liver disease and nonalcoholic steatohepatitis - Google Patents

Novel analogs of pterostilbene amino acid-containing carbonates for the treatment of nonalcoholic fatty liver disease and nonalcoholic steatohepatitis Download PDF

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JP7486615B2
JP7486615B2 JP2022575390A JP2022575390A JP7486615B2 JP 7486615 B2 JP7486615 B2 JP 7486615B2 JP 2022575390 A JP2022575390 A JP 2022575390A JP 2022575390 A JP2022575390 A JP 2022575390A JP 7486615 B2 JP7486615 B2 JP 7486615B2
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クオ,タイ-ファン
シーイェ,ポ-チュン
チェン,ミン-ロン
フ,チ-ウェイ
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アピカル モレキュラー バイオテック カンパニー リミテッド
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Description

本発明は、非アルコール性脂肪性肝疾患(NAFLD)および非アルコール性脂肪性肝炎(NASH)を治療するためのプテロスチルベンアミノ酸含有炭酸塩の新規類縁体に関する。 The present invention relates to novel analogs of pterostilbene amino acid-containing carbonates for the treatment of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH).

非アルコール性脂肪性肝疾患(NAFLD)は、非アルコール性脂肪性肝疾患としても知られる、肝臓の単純な脂肪浸潤から開始される一連の組織学的変化からなる(1)。非アルコール性脂肪性肝炎(NASH)は、NAFLDの重度の悪性形態である。それは、線維性肝硬変、肝不全、および肝細胞癌(HCC)に進行し得て、末期肝疾患または肝移植Cの癌に急速に変化し得る(2、3)。NAFLDは最も一般的な慢性肝疾患であり、世界中の成人人口の4分の1がNAFLDを患っている(4)。 Nonalcoholic fatty liver disease (NAFLD), also known as nonalcoholic fatty liver disease, consists of a series of histological changes that begin with simple fatty infiltration of the liver (1). Nonalcoholic steatohepatitis (NASH) is a severe malignant form of NAFLD. It can progress to fibrotic cirrhosis, liver failure, and hepatocellular carcinoma (HCC), and can rapidly transform into end-stage liver disease or cancer requiring liver transplantation (2, 3). NAFLD is the most common chronic liver disease, with one-quarter of the adult population worldwide suffering from NAFLD (4).

現在の推定によると、NASHと診断された成人人口の有病率は、2027年までに日本、イギリス、フランス、ドイツ、イタリア、およびスペインにおいて合わせて1,800万人に達するであろう。食事によるカロリー制限および運動などの生活習慣への介入は、現在のNASHの基本的な治療法であるが、薬物治療の緊急性を満たさないことはもちろん、改善および維持が困難であり得る(2)。 According to current estimates, the prevalence of the adult population diagnosed with NASH will reach a combined 18 million in Japan, the UK, France, Germany, Italy, and Spain by 2027. Lifestyle interventions such as dietary calorie restriction and exercise are the current basic treatments for NASH, but they can be difficult to improve and maintain, let alone meet the urgency of drug treatment (2).

NASH治療薬候補の臨床試験がいくつか開発中であるが(5-7)、現在のところ、米国FDAから承認されたNASH治療薬は存在しない。臨床試験中の薬剤のうち、オベチコール酸(Ocaliva、主に胆道胆管炎治療薬として知られている)は、現在唯一の第III相臨床試験薬候補であり、NASH効力の抑制に良好な結果を得て、その後、米国でのNDA(新薬申請)を行っている(8、9)。概して、新規で安全かつ有効なNASH/NAFLD治療薬または予防薬の開発が急務となっている。 Although several clinical trials of potential NASH treatments are under development (5-7), currently no treatments for NASH have been approved by the US FDA. Of the drugs under clinical trial, obeticholic acid (Ocaliva, known primarily for the treatment of biliary cholangitis) is currently the only candidate drug in Phase III clinical trials, which has shown good results in suppressing NASH efficacy and has subsequently submitted a New Drug Application (NDA) in the US (8, 9). Overall, there is an urgent need to develop new, safe and effective drugs for the treatment or prevention of NASH/NAFLD.

プテロスチルベン(トランス-3,5-ジメトキシ-4-ヒドロキシスチルベン)は、主にブルーベリー、ブドウ、および様々な樹木の木に主に見られる天然由来のファイトケミカル化合物である(10-12)。プテロスチルベンは、癌、脂質異常症、糖尿病、および認知機能低下などのいくつかの疾患の予防および治療に様々な利点を有することが知られている(10,11,13)。 Pterostilbene (trans-3,5-dimethoxy-4-hydroxystilbene) is a naturally occurring phytochemical compound found primarily in blueberries, grapes, and various tree species (10-12). Pterostilbene is known to have various benefits in the prevention and treatment of several diseases such as cancer, dyslipidemia, diabetes, and cognitive decline (10, 11, 13).

近年、プテロスチルベンが肥満ラットの肝脂肪症を軽減し、肝脂肪酸プロファイルを修正することが報告されている(14,15)。プテロスチルベンを動物、およびヒト実験の両方で使用した結果、低毒性および高い安全性を示した(16)。したがって、プテロスチルベンがNAFLD/NASHの治療のための臨床薬として開発される可能性は高い。しかしながら、プテロスチルベンは水溶性が0.011mg/mLと低く(www.vcclab.org)、臨床研究には不向きである。一部の創薬化学者は、これを水溶性のリン酸塩誘導体に誘導している(17)。一般にフェノールリン酸塩は安定性が低いため、経口製剤化されることはほとんどない。これまでのところ、プテロスチルベンリン酸塩の経口でのインビボ有効性に関する文献はない。ivの動物実験が報告されているのみである(18)。その後、Chava satyanarayanaらは、プテロスチルベンリン酸塩およびシタグリプチン(経口活性なジペプチジルペプチダーゼ-4、(DPP-IV)酵素阻害剤)を、結晶形態(または非晶質形態)のシタグリプチンプテロスチルベンリン酸塩の治療有効量を含む医薬組成物とした(Chava satyanarayana et.al.特許番号:国際公開第2014/147641号)。本化合物は
、シタグリプチンをベースとしている。本特許は、シタグリプションプテロスチルベンリン酸塩に関するもので、調製方法および同様の医薬組成物を含むが、インビボでの有効性の結果は含まない。
Recently, it has been reported that pterostilbene reduces hepatic steatosis and modifies hepatic fatty acid profile in obese rats (14, 15). The results of using pterostilbene in both animal and human experiments showed low toxicity and high safety (16). Therefore, it is highly likely that pterostilbene will be developed as a clinical drug for the treatment of NAFLD/NASH. However, pterostilbene has a low water solubility of 0.011 mg/mL (www.vcclab.org), making it unsuitable for clinical studies. Some medicinal chemists have derived it into a water-soluble phosphate derivative (17). In general, phenol phosphates are rarely formulated orally due to their low stability. So far, there is no literature on the oral in vivo efficacy of pterostilbene phosphate. Only iv animal studies have been reported (18). Subsequently, Chava Satyanarayana et al. formulated pterostilbene phosphate and sitagliptin (an orally active dipeptidyl peptidase-4, (DPP-IV) enzyme inhibitor) into a pharmaceutical composition containing a therapeutically effective amount of sitagliptin pterostilbene phosphate in crystalline (or amorphous) form (Chava Satyanarayana et.al. Patent No.: WO 2014/147641). The compound is based on sitagliptin. The patent relates to sitagliptin pterostilbene phosphate, including preparation methods and similar pharmaceutical compositions, but does not include in vivo efficacy results.

Azzolini Mらは、プテロスチルベンアミノ酸カルバメートの一連の水溶性誘導体を合成し(19)、その薬物動態および分布プロファイルを試験し、吸収の増加および代謝の減少を見出したが、さらにインビボでの有効性を試験していない。その理由として考えられるのは、カルバメートのエステル結合の体内での分解が非常に遅く、カルバメートの誘導体が生物学的に活性な代謝物(例えば、イリノテカン)に変換されないためと考えられる。さらに、Gonzalez-Alfonso JLらは、水溶性に優れた新規の一連の8-アームポリエチレングリコールプテロスチルベン誘導体を合成したが、抗腫瘍活性の試験はIV法のみ行った(20)。Kuoらは、扁平上皮癌および肝癌の阻害剤として一連のスチルベノイドを合成した(Kuo Sheng-Chu et al.米国特許第9.266.813号明細書、2016)。合成したスチルベノイドのうち、水溶性のプテロスチルベノイドの一部は不安定であり、安定なプテロスチルベノイドの一部は水溶性に乏しい。近年、Jose’Lらはプテロスチルベンα-グルコシドを酵素により合成した(Sytheaized)。その水溶性は向上したが、インビボでの有効性についての報告はない(20)。 Azzolini M et al. synthesized a series of water-soluble derivatives of pterostilbene amino acid carbamates (19), tested their pharmacokinetic and distribution profiles, and found increased absorption and decreased metabolism, but did not further test their efficacy in vivo. This is probably because the ester bond of carbamates is degraded very slowly in the body, and the carbamate derivatives are not converted to biologically active metabolites (e.g., irinotecan). In addition, Gonzalez-Alfonso JL et al. synthesized a novel series of 8-arm polyethylene glycol pterostilbene derivatives with excellent water solubility, but only tested their antitumor activity by IV method (20). Kuo et al. synthesized a series of stilbenoids as inhibitors of squamous cell carcinoma and hepatoma (Kuo Sheng-Chu et al. US Patent No. 9.266.813, 2016). Among the synthesized stilbenoids, some of the water-soluble pterostilbenoids are unstable, and some of the stable pterostilbenoids are poorly water-soluble. Recently, Jose'L et al. synthesized pterostilbene α-glucoside using an enzyme (Sytheaized). Its water solubility was improved, but there have been no reports of its effectiveness in vivo (20).

本発明の目的は、以下の式を有する一連の新規化合物、またはその薬学的に許容される塩を提供することである: The object of the present invention is to provide a series of novel compounds having the following formula, or a pharma- ceutically acceptable salt thereof:

式中、nは1~3であり;
mは2~6であり;
Q、XおよびYはそれぞれ独立に、O、S、またはNHであり;
Ra、RbおよびRcは、それぞれ独立に、H、ハロゲン、C1~C6直鎖アルキル、C1~C6直鎖アルコキシ、C3~C6分枝アルキル、C3~C6分枝アルコキシまたはC1~C6フルオロアルコキシであり;
RdおよびReは、それぞれ独立に、H、ハロゲン、C1~C6直鎖アルキル、C1~C6直鎖アルコキシ、C3~C6分枝アルキル、C3~C6分枝アルコキシもしくはC1~C6フルオロアルコキシ、またはRdとReとが連結して環状構造を形成し、
wherein n is 1 to 3;
m is 2 to 6;
Q, X and Y are each independently O, S, or NH;
Ra, Rb and Rc are each independently H, halogen, C1-C6 straight chain alkyl, C1-C6 straight chain alkoxy, C3-C6 branched alkyl, C3-C6 branched alkoxy or C1-C6 fluoroalkoxy;
Rd and Re each independently represent H, halogen, C1-C6 linear alkyl, C1-C6 linear alkoxy, C3-C6 branched alkyl, C3-C6 branched alkoxy or C1-C6 fluoroalkoxy, or Rd and Re are linked to form a cyclic structure;

となり、式中、jは1~3である。 where j is 1 to 3.

本発明の他の目的は、患者における非アルコール性脂肪性肝疾患および非アルコール性脂肪性肝炎を治療するための医薬の製造における、本発明の化合物またはその薬学的に許容される塩の新規な使用を提供することである。 Another object of the present invention is to provide a novel use of a compound of the present invention or a pharma- ceutically acceptable salt thereof in the manufacture of a medicament for treating nonalcoholic fatty liver disease and nonalcoholic steatohepatitis in a patient.

本発明のさらに他の目的は、対象における非アルコール性脂肪性肝疾患または非アルコール性脂肪性肝炎を治療するための医薬組成物であって、本発明の化合物、またはその薬学的に許容される塩の前記治療のための治療有効量を含む、医薬組成物を提供することである。 Yet another object of the present invention is to provide a pharmaceutical composition for treating non-alcoholic fatty liver disease or non-alcoholic steatohepatitis in a subject, comprising a therapeutically effective amount for said treatment of a compound of the present invention, or a pharma- ceutical acceptable salt thereof.

本発明は、さらに、本発明の化合物またはその薬学的に許容される塩の有効量を、前記治療を必要とする、非アルコール性脂肪性肝疾患または非アルコール性脂肪性肝炎を患う対象に投与することを含む、非アルコール性脂肪性肝疾患または非アルコール性脂肪性肝炎の治療方法を提供するものである。 The present invention further provides a method for treating non-alcoholic fatty liver disease or non-alcoholic steatohepatitis, comprising administering an effective amount of a compound of the present invention or a pharma- ceutical acceptable salt thereof to a subject suffering from non-alcoholic fatty liver disease or non-alcoholic steatohepatitis in need of said treatment.

本発明はまた、本発明の化合物またはその薬学的に許容される塩の合成に有用な中間体化合物であって、以下の式を有する化合物を提供するものである: The present invention also provides an intermediate compound useful in the synthesis of the compounds of the present invention or pharma- ceutically acceptable salts thereof, the compound having the following formula:

式中、m、Rc、Rd、およびReは上記のように定義され、Bocはビルディングブロック官能基であり、ただし、Rdは水素ではない。本発明の好ましい実施形態は、明細書の末尾にある添付の請求項に記載された特徴を含む(ただし、これに限定されるものではない)。 wherein m, Rc, Rd, and Re are defined as above, and Boc is a building block functional group, with the proviso that Rd is not hydrogen. Preferred embodiments of the present invention include, but are not limited to, the features recited in the appended claims at the end of the specification.

図1は、5群のマウス:シャム群(非MCD食);MCD食群;MCD食+本発明の化合物5c 75mg/kg;MCD食+化合物5c 100mg/kg;およびMCD食+化合物5c 150mg/kg、の肝臓サンプルを示す写真(倍率:200倍)であり、前記肝臓をヘマトキシリン・エオジン(H&E)染色し、位相差顕微鏡を用いて撮影した。FIG. 1 is a photograph (magnification: 200x) showing liver samples from five groups of mice: Sham group (non-MCD diet); MCD diet group; MCD diet + 75 mg/kg of compound 5c of the present invention; MCD diet + 100 mg/kg of compound 5c; and MCD diet + 150 mg/kg of compound 5c. The livers were stained with hematoxylin and eosin (H&E) and photographed using a phase contrast microscope. 図2は、24時間における25℃での化合物5cのHOへの溶解度を示す。FIG. 2 shows the solubility of compound 5c in H 2 O at 25° C. over 24 hours.

発明の詳細な説明
本発明の好ましい実施形態に従って、非アルコール性脂肪性肝疾患および非アルコール性脂肪性肝炎(NASH)の治療活性を示す一連の水溶性プテロスチルベンアミノ酸含有炭酸塩の新規類縁体を合成した。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In accordance with preferred embodiments of the present invention, a series of novel water-soluble pterostilbene amino acid-containing carbonate analogs have been synthesized that exhibit therapeutic activity for non-alcoholic fatty liver disease and non-alcoholic steatohepatitis (NASH).

1.化学合成
1-1.原料および機器
出発原料、試薬および溶媒は市販品(Sigma-Aldrich、Acros、TC
I、Alfa、Combi-Blocks、Matrix、およびFischer)から購入し、さらなる精製はせずに受け取った状態で使用した。Hおよび13C-NMRスペクトルは,Varian AS500 500 NMR-spectrometerまたはAgilent Technologies VnmrJ 500 NMR-spectrometerを用いて、表示した溶媒中で測定した。化学シフトは内部標準であるTMSシグナルに対するppm(δ単位)で表示されている。フラッシュカラムクロマトグラフィーは、Merck silica gel 60(0.063~0.200μm)を充填したカラムで実施した。化合物または最終化合物の精製は、Inertsil ODS-3 C18(5μm、30mm×250mm)カラムを用いて、220または254nmにおいてUV検出(Jasco UV-975検出器)を行う逆相高速液体クロマトグラフィー(RP-HPLC)で行った。移動相はHOおよびCHCN(溶離液A、70%ACNまたは80%ACN、アイソクラティック、流量42mL/分;溶離液B、グラジエント、詳細は実験に記載)から構成された。電子衝撃によるマススペクトル(MS)は、API 3200 LC/MS/MSで記録された。溶媒は試薬グレードを使用し、必要に応じて標準的な方法で精製、乾燥させた。反応溶液の濃縮は、ロータリーエバポレーターを使用し、減圧下で行った。
1. Chemical synthesis 1-1. Materials and equipment Starting materials, reagents and solvents were commercially available (Sigma-Aldrich, Acros, TC
I, Alfa, Combi-Blocks, Matrix, and Fischer) and were used as received without further purification. 1 H and 13 C-NMR spectra were measured on a Varian AS500 500 NMR-spectrometer or an Agilent Technologies VnmrJ 500 NMR-spectrometer in the solvents indicated. Chemical shifts are given in ppm (δ units) relative to the TMS signal, which is an internal standard. Flash column chromatography was performed on columns packed with Merck silica gel 60 (0.063-0.200 μm). Purification of compounds or final compounds was performed by reversed-phase high-performance liquid chromatography (RP-HPLC) using an Inertsil ODS-3 C18 (5 μm, 30 mm×250 mm) column with UV detection at 220 or 254 nm (Jasco UV-975 detector). The mobile phase consisted of H 2 O and CH 3 CN (eluent A, 70% or 80% ACN, isocratic, flow rate 42 mL/min; eluent B, gradient, details described in the Experimental section). Electron impact mass spectra (MS) were recorded on an API 3200 LC/MS/MS. Solvents were of reagent grade and, if necessary, were purified and dried by standard methods. Reaction solutions were concentrated under reduced pressure using a rotary evaporator.

1-2.目的化合物5a~10の合成
1-2-1.化合物5a~5sの合成
スキーム1に従って目的化合物5a~5sを合成した。各種アミノ酸(1a~1s)をCHCl中、1-エチル-3-(3-ジメチルアミノプロピル)カルボジイミド(EDCI)、ジイソプロピルエチルアミン(DIPEA)、およびN,N-ジメチルアミノピリジン(DMAP)の存在下において、または1-[ビス(ジメチルアミノ)メチレン]-1H-1,2,3-トリアゾロ[4,5-b]ピリジニウム3-オキシドヘキサフルオロホスファート(HATU)、およびDIPEAの存在下において、エタノールアミンと反応させ、対応するヒドロキシルアミド誘導体(化合物2a~2s)を得た。その後、1,4-ジオキサン中4M HCl、またはCHCl中トリフルオロ酢酸(TFA)およびトリイソプロピルシラン(TIPS)、で脱保護し、目的化合物5a~5sを得た。
1-2. Synthesis of target compounds 5a to 10 1-2-1. Synthesis of compounds 5a to 5s Target compounds 5a to 5s were synthesized according to Scheme 1. Various amino acids (1a to 1s) were reacted with ethanolamine in the presence of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDCI), diisopropylethylamine (DIPEA), and N,N-dimethylaminopyridine (DMAP) in CH 2 Cl 2, or in the presence of 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxide hexafluorophosphate (HATU) and DIPEA, to obtain the corresponding hydroxylamide derivatives (compounds 2a to 2s). Subsequent deprotection with 4M HCl in 1,4-dioxane, or trifluoroacetic acid (TFA) and triisopropylsilane (TIPS) in CH 2 Cl 2 afforded the target compounds 5a-5s.

スキーム1:化合物5a~5sの合成 Scheme 1: Synthesis of compounds 5a-5s

試薬および条件:(a)EDCI,DIPEA,DMAP,CHClまたはHATU,DIPEA,CHCl;(b)NEt,CHCl;(c)DMAP,ACN,50℃;(d)1,4-ジオキサン中4M HCl,またはTFA,TIPS,CH
Cl
Reagents and conditions: (a) EDCI, DIPEA, DMAP, CH 2 Cl 2 or HATU, DIPEA, CH 2 Cl 2 ; (b) NEt 3 , CH 2 Cl 2 ; (c) DMAP, ACN, 50° C.; (d) 4M HCl in 1,4-dioxane, or TFA, TIPS, CH
2Cl2 .

tert-ブチル(2-((2-ヒドロキシエチル)アミノ)-2-オキソエチル)カルバメート(2a)
CHCl(80mL)中のエタノールアミン(3.03g,49.6mmol),Boc-Gly-OH 1a(7.2g,41.3mmol)およびDIPEA(16g,124mmol)の撹拌溶液に、EDCI(61.7g,46.6mmol)を添加した。反応混合物を室温で12時間撹拌した。反応後、溶媒を真空除去し、残渣をカラムクロマトグラフィー(n-ヘキサンからEA/n-ヘキサン=1/5(V/V))で精製し、目的生成物2a(3.3g,収率37%)を白色粉末として得た。1H-NMR (CDCl3, 500
MHz), δ (ppm): 6.98 (s, NH), 5.62 (s, NH), 3.80 (s, 2H), 3.70-3.68 (m, 2H), 3.43-3.40 (m, 2H), 3.25 (s, OH), 1.44 (s, 9H)。
tert-Butyl (2-((2-hydroxyethyl)amino)-2-oxoethyl)carbamate (2a)
To a stirred solution of ethanolamine (3.03 g, 49.6 mmol), Boc-Gly-OH 1a (7.2 g, 41.3 mmol) and DIPEA (16 g, 124 mmol) in CH 2 Cl 2 (80 mL) was added EDCI (61.7 g, 46.6 mmol). The reaction mixture was stirred at room temperature for 12 h. After the reaction, the solvent was removed in vacuum and the residue was purified by column chromatography (n-hexane to EA/n-hexane=1/5 (V/V)) to give the desired product 2a (3.3 g, 37% yield) as a white powder. 1 H-NMR (CDCl 3 , 500
MHz), δ (ppm): 6.98 (s, NH), 5.62 (s, NH), 3.80 (s, 2H), 3.70-3.68 (m, 2H), 3.43-3.40 (m, 2H), 3.25 (s, OH), 1.44 (s, 9H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-1-オキソプロパン-2-イル)カルバメート(2b)
2aと同様の合成手順でBoc-Ala-OH 1bから2bを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-1-oxopropan-2-yl)carbamate (2b)
Following a similar synthetic procedure to 2a, 2b was obtained from Boc-Ala-OH 1b.

収率37%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 6.90 (s, NH), 5.37 (s, NH), 4.13-4.10 (m, 2H), 3.69-3.68 (m, 2H), 3.44-3.43 (m, 1H), 3.37-3.36 (m, 1H), 1.43 (s, 9H), 1.35 (d, J = 6.5 Hz, 3H)。 Yield 37%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 6.90 (s, NH), 5.37 (s, NH), 4.13-4.10 (m, 2H), 3.69-3.68 (m, 2H), 3.44-3.43 (m, 1H), 3.37-3.36 (m, 1H), 1.43 (s, 9H), 1.35 (d, J = 6.5 Hz, 3H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(2c)
CHCl(40mL)中のエタノールアミン(335mg,5.4819mmol),Boc-Val-OH 1c(1191mg,5.5mmol)およびDIPEA(2387uL,13.7mmol)の撹拌溶液に、HATU(2501mg,6.6mmol)を添加した。反応混合物を室温で12時間撹拌した。反応後、溶媒を真空除去し、残渣をカラムクロマトグラフィー(n-ヘキサンからEA/n-ヘキサン=3/1(V/V))で精製し、目的生成物2c(1113mg、収率78%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ (ppm): 6.65 (s, NH), 5.15 (s, NH), 3.86 (t, J= 7.5 Hz, 1H), 3.70 (s, 2H), 3.49-3.41 (m, 1H), 3.40-3.36 (m, 1H), 3.07 (s, 1H), 2.11-2.10 (m, 1H) 1.43 (s, 9H), 0.96 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H)。
tert-Butyl (1-((2-hydroxyethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (2c)
To a stirred solution of ethanolamine (335 mg, 5.4819 mmol), Boc-Val-OH 1c (1191 mg, 5.5 mmol) and DIPEA (2387 uL, 13.7 mmol) in CH 2 Cl 2 (40 mL) was added HATU (2501 mg, 6.6 mmol). The reaction mixture was stirred at room temperature for 12 h. After the reaction, the solvent was removed in vacuum and the residue was purified by column chromatography (n-hexane to EA/n-hexane=3/1 (V/V)) to give the desired product 2c (1113 mg, 78% yield) as a white powder. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 6.65 (s, NH), 5.15 (s, NH), 3.86 (t, J = 7.5 Hz, 1H), 3.70 (s, 2H), 3.49-3.41 (m, 1H), 3.40-3.36 (m, 1H), 3.07 (s, 1H), 2.11-2.10 (m, 1H) 1.43 (s, 9H), 0.96 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-4-メチル-1-オキソペンタン-2-イル)カルバメート(2d)
2aと同様の合成手順でBoc-Leu-OH 1dから2dを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamate (2d)
Following a similar synthetic procedure to 2a, 2d was obtained from Boc-Leu-OH 1d.

収率70%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.05 (s, NH), 5.31 (s, NH), 4.13-4.12 (m, 1H), 3.70-3.67 (m, 2H), 3.47-3.44 (m, 1H), 3.38-3.34 (m, 1H), 1.67-1.60 (m, 2H), 1.52-1.47 (m, 1H), 1.42 (s, 9H), 0.94-0.91 (m, 6H)。 Yield 70%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.05 (s, NH), 5.31 (s, NH), 4.13-4.12 (m, 1H), 3.70-3.67 (m, 2H), 3.47-3.44 (m, 1H), 3.38-3.34 (m, 1H), 1.67-1.60 (m, 2H), 1.52-1.47 (m, 1H), 1.42 (s, 9H), 0.94-0.91 (m, 6H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-3-メチル-1-オキソペンタン-2-イル)カルバメート(2e)
2aと同様の合成手順でBoc-Ile-OH 1eから2eを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-3-methyl-1-oxopentan-2-yl)carbamate (2e)
Following a similar synthetic procedure to 2a, 2e was obtained from Boc-Ile-OH 1e.

収率64%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 6.73 (s, NH), 5.19 (s, NH), 3.90 (t, J = 7.0 Hz, 1H), 3.71-3.69 (m, 2H), 3.49-3.44 (m, 1H), 3.39-3.36 (m, 1H), 2.48-2.46 (m, 1H), 1.86-1.84 (m, 1H), 1.56-1.53 (m, 1H), 1.43 (s, 9H), 0.94-0.89
(m, 6H)。
Yield 64%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 6.73 (s, NH), 5.19 (s, NH), 3.90 (t, J = 7.0 Hz, 1H), 3.71-3.69 (m, 2H), 3.49-3.44 (m, 1H), 3.39-3.36 (m, 1H), 2.48-2.46 (m, 1H), 1.86-1.84 (m, 1H), 1.56-1.53 (m, 1H), 1.43 (s, 9H), 0.94-0.89
(m, 6H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-4-(メチルチオ)-1-オキソブタン-2-イル)カルバメート(2f)
2cと同様の合成手順でBoc-Met-OH 1fから2fを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-4-(methylthio)-1-oxobutan-2-yl)carbamate (2f)
Following a similar synthetic procedure to 2c, 2f was obtained from Boc-Met-OH 1f.

収率32%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.30 (s, NH), 5.73 (s, NH), 4.14-4.12 (m, 1H), 3.59-3.58 (m, 2H), 3.39-3.24 (m, 2H), 2.49-2.46 (m, 2H), 2.05 (s, 3H), 2.02-1.98 (m, 1H), 1.85-1.82 (m, 1H), 1.38 (s, 9H)。 Yield 32%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.30 (s, NH), 5.73 (s, NH), 4.14-4.12 (m, 1H), 3.59-3.58 (m, 2H), 3.39-3.24 (m, 2H), 2.49-2.46 (m, 2H), 2.05 (s, 3H), 2.02-1.98 (m, 1H), 1.85-1.82 (m, 1H), 1.38 (s, 9H).

tert-ブチル(3-(tert-ブトキシ)-1-((2-ヒドロキシエチル)アミノ)-1-オキソプロパン-2-イル)カルバメート(2g)
2aと同様の合成手順でBoc-Ser(tBu)-OH 1gから2gを得た。
tert-Butyl (3-(tert-butoxy)-1-((2-hydroxyethyl)amino)-1-oxopropan-2-yl)carbamate (2g)
The compound 2g was obtained from Boc-Ser(tBu)-OH 1g by the same synthetic procedure as for 2a.

収率41%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 6.93 (s, NH), 5.42 (s, NH), 4.19-4.17 (m, 1H), 3.76 (s, OH), 3.75-3.69 (m, 2H), 3.42-3.40 (m, 2H), 2.55-2.52 (m, 1H) 1.43 (s, 9H), 1.17 (s, 9H)。 Yield 41%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 6.93 (s, NH), 5.42 (s, NH), 4.19-4.17 (m, 1H), 3.76 (s, OH), 3.75-3.69 (m, 2H), 3.42-3.40 (m, 2H), 2.55-2.52 (m, 1H) 1.43 (s, 9H), 1.17 (s, 9H).

tert-ブチル(3-(tert-ブトキシ)-1-((2-ヒドロキシエチル)アミノ)-1-オキソブタン-2-イル)カルバメート(2h)
2aと同様の合成手順でBoc-Thr(tBu)-OH 1hから2hを得た。
tert-Butyl (3-(tert-butoxy)-1-((2-hydroxyethyl)amino)-1-oxobutan-2-yl)carbamate (2h)
Following a similar synthetic procedure to 2a, 2h was obtained from Boc-Thr(tBu)-OH 1h.

収率24%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.12 (s, NH), 5.62 (s, NH), 4.13-4.09 (m, 2H), 3.72-3.70 (m, 2H), 3.49-3.48 (m, 1H), 3.38-3.37 (m, 1H), 1.45 (s, 9H), 1.24 (s, 9H), 1.06 (d, J = 5.5 Hz, 3H)。 Yield 24%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.12 (s, NH), 5.62 (s, NH), 4.13-4.09 (m, 2H), 3.72-3.70 (m, 2H), 3.49-3.48 (m, 1H), 3.38-3.37 (m, 1H), 1.45 (s, 9H), 1.24 (s, 9H), 1.06 (d, J = 5.5 Hz, 3H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-1-オキソ-3-(トリチルチオ)プロパン-2-イル)カルバメート(2i)
2cと同様の合成手順でBoc-Cys(Trt)-OH 1iから2iを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-1-oxo-3-(tritylthio)propan-2-yl)carbamate (2i)
Following a similar synthetic procedure to 2c, 2i was obtained from Boc-Cys(Trt)-OH 1i.

収率71%。1H-NMR (CDCl3, 500 MHz), δ (ppm): .7.42-7.40 (m, 6H), 7.31-7.27 (m, 6H), 7.26-7.20 (m, 3H), 6.42 (s, NH), 4.88 (s, NH), 3.81-3.80 (m, 1H), 3.64-3.63 (m, 2H), 3.34-3.33 (m, 2H), 2.69-2.66 (m, 1H), 2.57-2.53 (m, 1H), 1.41 (s, 9H)。 Yield 71%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): .7.42-7.40 (m, 6H), 7.31-7.27 (m, 6H), 7.26-7.20 (m, 3H), 6.42 (s, NH), 4.88 (s, NH), 3.81-3.80 (m, 1H), 3.64-3.63 (m, 2H), 3.34-3.33 (m, 2H), 2.69-2.66 (m, 1H), 2.57-2.53 (m, 1H), 1.41 (s, 9H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-1-オキソ-3-フェニルプロパン-2-イル)カルバメート(2j)
2cと同様の合成手順でBoc-Phe-OH 1jから2jを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (2j)
Following a similar synthetic procedure to 2c, 2j was obtained from Boc-Phe-OH 1j.

収率88%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.33-7.30 (m, 2H), 7.25-7.21 (m, 3H), 6.21 (brs, 1H, NH), 5.11 (brs, 1H, NH), 4.29 (d, J= 7.0 Hz, 1H), 3.58-3.57 (m, 2H), 3.32 (s, 2H), 3.10-3.01 (m, 2H), 2.44 (brs, 1H, OH), 1.44 (s, 9H)。 Yield: 88%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.33-7.30 (m, 2H), 7.25-7.21 (m, 3H), 6.21 (brs, 1H, NH), 5.11 (brs, 1H, NH), 4.29 (d, J= 7.0 Hz, 1H), 3.58-3.57 (m, 2H), 3.32 (s, 2H), 3.10-3.01 (m, 2H), 2.44 (brs, 1H, OH), 1.44 (s, 9H).

tert-ブチル(3-(4-(tert-ブトキシ)フェニル)-1-((2-ヒドロキシエチル)アミノ)-1-オキソプロパン-2-イル)カルバメート(2k)
2cと同様の合成手順でBoc-Tyr(tBu)-OH 1kから2kを得た。
tert-Butyl (3-(4-(tert-butoxy)phenyl)-1-((2-hydroxyethyl)amino)-1-oxopropan-2-yl)carbamate (2k)
The same synthetic procedure as for 2c was used to obtain 2k from Boc-Tyr(tBu)-OH 1k.

収率34%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.09 (d, J= 8.5 Hz, 2H), 6.91 (d, J= 8.5 Hz, 2H), 6.39 (s, NH), 5.22 (s, NH), 4.27-4.26 (m, 1H), 3.59-3.56 (m, 2H), 3.31-3.30 (m, 2H), 2.99-2.97 (m, 2H), 1.40 (s, 9H), 1.32 (s, 9H)。 Yield 34%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.09 (d, J= 8.5 Hz, 2H), 6.91 (d, J= 8.5 Hz, 2H), 6.39 (s, NH), 5.22 (s, NH), 4.27-4.26 (m, 1H), 3.59-3.56 (m, 2H), 3.31-3.30 (m, 2H), 2.99-2.97 (m, 2H), 1.40 (s, 9H), 1.32 (s, 9H).

tert-ブチル 3-(2-((tert-ブトキシカルボニル)アミノ)-3-(
(2-ヒドロキシエチル)アミノ)-3-オキソプロピル)-1H-インドール-1-カルボキシラート(2l)
2aと同様の合成手順でBoc-Trp(Boc)-OH 1lから2lを得た。
tert-Butyl 3-(2-((tert-butoxycarbonyl)amino)-3-(
(2-hydroxyethyl)amino)-3-oxopropyl)-1H-indole-1-carboxylate (2l)
The same synthetic procedure as for 2a was used to obtain 2l from Boc-Trp(Boc)-OH 1l.

収率35%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 8.13-8.11 (m, 1H), 7.60 (d, J =
7.5 Hz, 1H), 7.47 (s, 1H), 7.33 (t, J = 7.5 Hz, 1H), 7.28-7.25 (m, 1H), 6.20 (s, NH), 5.18 (s, NH), 4.39-4.38 (m, 1H), 3.60-3.52 (m, 2H), 3.31-3.28 (m, 2H), 3.21-3.14 (m, 2H), 1.67 (s, 9H), 1.43 (s, 9H)。
Yield: 35%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 8.13-8.11 (m, 1H), 7.60 (d, J =
7.5 Hz, 1H), 7.47 (s, 1H), 7.33 (t, J = 7.5 Hz, 1H), 7.28-7.25 (m, 1H), 6.20 (s, NH), 5.18 (s, NH), 4.39-4.38 (m, 1H), 3.60-3.52 (m, 2H), 3.31-3.28 (m, 2H), 3.21-3.14 (m, 2H), 1.67 (s, 9H), 1.43 (s, 9H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-1-オキソ-3-(1-トリチル-1H-イミダゾール-2-イル)プロパン-2-イル)カルバメート(2m)
2cと同様の合成手順でBoc-His(Trt)-OH 1mから2mを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-1-oxo-3-(1-trityl-1H-imidazol-2-yl)propan-2-yl)carbamate (2m)
Following a similar synthetic procedure to 2c, 2m was obtained from Boc-His(Trt)-OH 1m.

収率67%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.37 (s, 1H), 7.34-7.33 (m, 9H), 7.11-7.10 (m, 6H), 6.34 (s, 1H), 6.57 (s, NH), 5.79 (s, NH), 4.33 (s, 1H), 3.73-3.60 (m, 2H), 3.51 (brs, 1H), 3.21 (brs, 1H), 3.08-3.02 (m, 2H), 1.43 (s, 9H)
Yield: 67%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.37 (s, 1H), 7.34-7.33 (m, 9H), 7.11-7.10 (m, 6H), 6.34 (s, 1H), 6.57 (s, NH), 5.79 (s, NH), 4.33 (s, 1H), 3.73-3.60 (m, 2H), 3.51 (brs, 1H), 3.21 (brs, 1H), 3.08-3.02 (m, 2H ), 1.43 (s, 9H)
.

ジ-tert-ブチル(6-((2-ヒドロキシエチル)アミノ)-6-オキソヘキサン-1,5-ジイル)ジカルバメート(2n)
2cと同様の合成手順でBoc-Lys(Boc)-OH 1nから2nを得た。
Di-tert-butyl(6-((2-hydroxyethyl)amino)-6-oxohexane-1,5-diyl)dicarbamate (2n)
A similar synthetic procedure to 2c was used to obtain 2n from Boc-Lys(Boc)-OH 1n.

収率70%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 6.88 (s, NH), 5.43 (s, NH), 4.78 (s, NH), 4.07-4.04 (m, 1H), 3.70-3.68 (m, 2H), 3.41-3.40 (m, 2H), 3.10-3.09 (m, 2H), 1.85-1.79 (m, 1H), 1.66-1.62 (m, 1H), 1.49-1.46 (m, 2H), 1.42 (s, 18H), 1.39-1.37 (m, 2H)。 Yield 70%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 6.88 (s, NH), 5.43 (s, NH), 4.78 (s, NH), 4.07-4.04 (m, 1H), 3.70-3.68 (m, 2H), 3.41-3.40 (m, 2H), 3.10-3.09 (m, 2H), 1.85-1.79 (m, 1H), 1.66-1.62 (m, 1H), 1.49-1.46 (m, 2H), 1.42 (s, 18H), 1.39-1.37 (m, 2H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-1-オキソ-5-(3-((2,2,4,6,7-ペンタメチル-2,3-ジヒドロベンゾフラン-5-イル)スルホニル)グアニジノ)ペンタン-2-イル)カルバメート(2o)
2aと同様の合成手順でBoc-Arg(Pbf)-OH 1oから2oを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-1-oxo-5-(3-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-yl)sulfonyl)guanidino)pentan-2-yl)carbamate (2o)
Following a similar synthetic procedure to 2a, 2o was obtained from Boc-Arg(Pbf)-OH 1o.

収率50%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.42 (s, NH), 6.37 (s, NH), 5.81 (s, NH), 4.23-4.18 (m, 1H), 3.72-3.71 (m, 2H), 3.42-3.41 (m, 2H), 3.31-3.26 (m, 2H), 2.92 (s, 3H), 2.57 (s, 3H), 2.50 (s, 3H), 2.09 (s, 3H), 1.90-1.56 (m, 4H), 1.46 (s, 6H), 1.42 (s, 9H)。 Yield 50%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.42 (s, NH), 6.37 (s, NH), 5.81 (s, NH), 4.23-4.18 (m, 1H), 3.72-3.71 (m, 2H), 3.42-3.41 (m, 2H), 3.31-3.26 (m, 2H), 2.92 (s, 3H), 2.57 (s, 3H), 2.50 (s, 3H), 2.09 (s, 3H), 1.90-1.56 (m, 4H), 1.46 (s, 6H), 1.42 (s, 9H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-1,4-ジオキソ-4-(トリチルアミノ)ブタン-2-イル)カルバメート(2p)
2aと同様の合成手順でBoc-Asn(Trt)-OH 1pから2pを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-1,4-dioxo-4-(tritylamino)butan-2-yl)carbamate (2p)
A similar synthetic procedure to that for 2a was used to obtain 2p from Boc-Asn(Trt)-OH 1p.

収率37%1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.30-7.23 (m, 9H), 7.19-7.17 (m, 6H), 7.11 (s, NH), 6.91 (s, NH), 6.06 (s, NH), 4.41 (m, 1H), 3.57-3.55 (m, 2H), 3.31-3.29 (m, 2H), 3.06-3.03 (m, 1H), 2.62-2.58 (m, 1H), 1.93 (s, 1H), 1.42 (s, 9H)。 Yield 37%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.30-7.23 (m, 9H), 7.19-7.17 (m, 6H), 7.11 (s, NH), 6.91 (s, NH), 6.06 (s, NH), 4.41 (m, 1H), 3.57-3.55 (m, 2H), 3.31-3.29 (m, 2H), 3.06-3.03 (m, 1H), 2.62-2.58 (m, 1H), 1.93 (s, 1H), 1.42 (s, 9H).

tert-ブチル(1-((2-ヒドロキシエチル)アミノ)-1,5-ジオキソ-5-(トリチルアミノ)ペンタン-2-イル)カルバメート(2q)
2cと同様の合成手順でBoc-Gln(Trt)-OH 1qから2qを得た。
tert-Butyl (1-((2-hydroxyethyl)amino)-1,5-dioxo-5-(tritylamino)pentan-2-yl)carbamate (2q)
The same synthetic procedure as for 2c was used to obtain 2q from Boc-Gln(Trt)-OH 1q.

収率51%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.30-7.23 (m, 15H), 6.83 (s, NH), 5.67 (s, NH), 4.11-3.98 (m, 1H), 3.54-3.53 (m, 2H), 3.32-3.22 (m, 2H), 2.48-2.46 (m, 1H), 2.37-2.34 (m, 1H), 2.04-1.98 (m, 1H), 1.85-1.84 (m, 1H), 1.41 (s, 9H)。 Yield: 51%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.30-7.23 (m, 15H), 6.83 (s, NH), 5.67 (s, NH), 4.11-3.98 (m, 1H), 3.54 -3.53 (m, 2H), 3.32-3.22 (m, 2H), 2.48-2.46 (m, 1H), 2.37-2.34 (m, 1H), 2.04-1.98 (m, 1H), 1.85-1.84 (m, 1H), 1.41 (s, 9H).

tert-ブチル 3-((tert-ブトキシカルボニル)アミノ)-4-((2-ヒドロキシエチル)アミノ)-4-オキソブタノエート(2r)
2aと同様の合成手順でBoc-Asp(tBu)-OH 1rから2rを得た。
tert-Butyl 3-((tert-butoxycarbonyl)amino)-4-((2-hydroxyethyl)amino)-4-oxobutanoate (2r)
Following a similar synthetic procedure to 2a, 2r was obtained from Boc-Asp(tBu)-OH 1r.

収率37%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 6.93 (s, NH), 5.63 (s, NH), 4.43-4.40 (m, 1H), 3.70-3.68 (m, 2H), 3.44-3.37 (m, 2H), 2.87-2.83 (m, 1H), 2.66-2.64 (m, 1H), 1.44 (s, 9H), 1.43 (s, 9H)。 Yield 37%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 6.93 (s, NH), 5.63 (s, NH), 4.43-4.40 (m, 1H), 3.70-3.68 (m, 2H), 3.44-3.37 (m, 2H), 2.87-2.83 (m, 1H), 2.66-2.64 (m, 1H), 1.44 (s, 9H), 1.43 (s, 9H).

tert-ブチル 4-((tert-ブトキシカルボニル)アミノ)-5-((2-ヒドロキシエチル)アミノ)-5-オキソペンタノエート(2s)
2aと同様の合成手順でBoc-Glu(tBu)-OH 1sから2sを得た。
tert-Butyl 4-((tert-butoxycarbonyl)amino)-5-((2-hydroxyethyl)amino)-5-oxopentanoate (2s)
The same synthetic procedure as for 2a was used to obtain 2s from Boc-Glu(tBu)-OH 1s.

収率37%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 6.96 (s, NH), 5.52 (s, NH), 4.13-4.10 (m, 1H), 3.69-3.68 (m, 2H), 3.41-3.40 (m, 2H), 2.39-2.30 (m, 2H), 2.05-2.03 (m, 1H), 1.91-1.88 (m, 1H), 1.43 (s, 9H), 1.42 (s, 9H)。 Yield 37%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 6.96 (s, NH), 5.52 (s, NH), 4.13-4.10 (m, 1H), 3.69-3.68 (m, 2H), 3.41-3.40 (m, 2H), 2.39-2.30 (m, 2H), 2.05-2.03 (m, 1H), 1.91-1.88 (m, 1H), 1.43 (s, 9H), 1.42 (s, 9H).

tert-ブチル(E)-(2-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-2-オキソエチル)カルバメート(4a)の合成
脱水CHCl(15ml)中の化合物2a(2.02g、9.3mmol)の撹拌溶液にトリエチルアミン(3.22mL、23.1mmol)を加え、4-ニトロフェニルクロロホルメート溶液(1.96g、9.7mmol、10mL CHCl中)を0℃で滴下して添加した。反応混合物を0℃で15分間撹拌した後、室温に温めた。混合物を室温でさらに4時間撹拌した。反応終了後(TLCで確認)、溶媒を蒸発させて除去した。粗中間体をACN(20ml)中のプテロシルベベ(2.50g,9.8mmol)およびDMAP(2.27g,18.6mmol)と混合した。得られた混合物を50℃まで1時間加熱した。反応後、溶媒を真空下で除去した。残渣をEAに取り込み、飽和クエン酸水溶液で洗浄した。有機層を回収し、NaSO上で乾燥させ、蒸発させた。残渣をカラムクロマトグラフィー(シリカゲル、0~25%EtOAc/n-ヘキサン)で精製して粗生成物を得て、これを分取HPLC(70%ACN,30%HO)でさらに精製して目的化合物4a(2.22g,収率48%)を白い粉末として得た。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.52 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.5 Hz, 2H), 6.51 (brs, NH), 6.41 (t, J = 2.5 Hz, 1H), 5.10 (brs, NH), 4.35 (t, J = 5.5 Hz, 2H), 3.84-3.79 (m, 8H), 3.67 (q, J= 5.5 Hz, 2H), 1.46 (s, 9H). Mass found [M - Boc + H]+ = 402.2; [M + H]+ = 502.2, [M + Na]+ = 524.2, [2M + H]+ = 902.4。
Synthesis of tert-butyl (E)-(2-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-2-oxoethyl)carbamate (4a) To a stirred solution of compound 2a (2.02 g, 9.3 mmol) in dry CH 2 Cl 2 (15 ml) was added triethylamine (3.22 mL, 23.1 mmol) and a solution of 4-nitrophenyl chloroformate (1.96 g, 9.7 mmol, 10 mL in CH 2 Cl 2 ) was added dropwise at 0° C. The reaction mixture was stirred at 0° C. for 15 min and then allowed to warm to room temperature. The mixture was stirred at room temperature for an additional 4 h. After completion of the reaction (checked by TLC), the solvent was removed by evaporation. The crude intermediate was mixed with pterosylvebe (2.50 g, 9.8 mmol) and DMAP (2.27 g, 18.6 mmol) in ACN (20 ml). The resulting mixture was heated to 50° C. for 1 h. After the reaction, the solvent was removed under vacuum. The residue was taken up in EA and washed with saturated aqueous citric acid. The organic layer was collected, dried over Na 2 SO 4 and evaporated. The residue was purified by column chromatography (silica gel, 0-25% EtOAc/n-hexane) to give the crude product, which was further purified by preparative HPLC (70% ACN, 30% H 2 O) to give the target compound 4a (2.22 g, 48% yield) as a white powder. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.52 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.5 Hz, 2H), 6.51 (brs, NH), 6.41 (t, J = 2.5 Hz, 1H), 5.10 (brs, NH), 4.35 (t, J = 5.5 Hz, 2H), 3.84-3.79 (m, 8H), 3.67 (q, J= 5.5 Hz, 2H), 1.46 (s, 9H). Mass found [M-Boc+H] + = 402.2; [M+H] + = 502.2, [M+Na] + = 524.2, [2M+H] + = 902.4.

中間体4b~4sを4aと同様の合成手順で合成した。 Intermediates 4b to 4s were synthesized using the same synthetic procedure as 4a.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソプロパン-2-イル)カルバメート(4b)
4aと同様の合成手順で2bから4bを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxopropan-2-yl)carbamate (4b)
4b was obtained from 2b via a similar synthetic procedure to 4a.

収率56%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.67 (s, 2H), 6.58 (s, 1H), 6.41 (s, 1H), 4.94 (s, 1H), 4.34 (t, J = 5.0 Hz, 2H), 4.17 (s, 1H), 3.84 (s, 6H), 3.65-3.64 (m, 1H), 1.46 (s, 9H), 1.38 (d, J = 7.5 Hz, 3H). Mass found [M - Boc + H]+ = 416.2; [M + H]+ = 516.3, [M + Na]+= 538.3。 Yield: 56%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.67 (s, 2H), 6.58 (s, 1H), 6.41 (s, 1H), 4.94 (s, 1H), 4.34 (t, J = 5.0 Hz, 2H), 4.17 (s, 1H), 3.84 (s, 6H), 3.65-3.64 (m, 1H), 1.46 (s, 9H), 1.38 (d, J = 7.5 Hz, 3H). Mass found [M-Boc+H] + = 416.2; [M+H] + = 516.3, [M+Na] + = 538.3.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(4c)
4aと同様の合成手順で2cから4cを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (4c)
4c was obtained from 2c via a similar synthetic procedure to 4a.

収率78%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.0 Hz, 1H), 6.99 (d, J= 16.0 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.41-6.60 (m, 2H), 5.03 (s, 1H), 4.34 (t, J = 5.0 Hz, 2H), 3.93-3.83 (m, 1H), 3.70 (s, 6H), 3.68-3.63 (m, 2H), 2.17-2.16 (m, 1H) 1.45 (s, 9H), 0.98 (d, J = 6.5 Hz, 3H), 0.93 (d, J= 6.5 Hz, 3H). Mass found [M - Boc + H]+ = 444.1; [M + Na]+ = 566.1。 Yield: 78%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.0 Hz, 1H), 6.99 (d, J= 16.0 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.41-6.60 (m, 2H), 5.03 (s, 1H), 4.34 (t, J = 5.0 Hz, 2H), 3.93-3.83 (m, 1H), 3.70 (s, 6H), 3.68-3.63 (m, 2H), 2.17-2.16 (m, 1H) 1.45 (s, 9H), 0.98 (d, J = 6.5 Hz, 3H), 0.93 (d, J= 6.5 Hz, 3H). Mass found [M - Boc + H] + = 444.1; [M + Na] + = 566.1.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-4-メチル-1-オキソペンタン-2-イル)カルバメート(4d)の合成
4aと同様の合成手順で2dから4dを得た。
Synthesis of tert-butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-4-methyl-1-oxopentan-2-yl)carbamate (4d) 4d was obtained from 2d by the same synthetic procedure as for 4a.

収率32%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.98 (d, J= 16.5 Hz, 1H), 6.67 (d, J= 2.0 Hz, 2H), 6.55 (s, NH), 6.41 (s, 1H), 4.84 (s, NH), 4.33 (t, J = 5.0 Hz, 2H), 4.11 (s, 1H), 3.84 (s, 6H), 3.64 (dd, J= 5.0, 10.5 Hz, 2H), 1.73-1.66 (m, 2H), 1.51-1.47 (m, 1H), 1.45 (s, 9H), 0.96-0.94 (m, 6H). Mass found [M - Boc + H]+= 457.3; [M - Boc + Na]+ = 479.2; [M + Na]+= 579.3; [2M + Na]+ = 1135.5。 Yield: 32%. 1H -NMR ( CDCl3 , 500MHz), δ (ppm): 7.51 (d, J= 8.5Hz, 2H), 7.18 (d, J= 9.0Hz, 2H), 7.06 (d, J= 16.5Hz, 1H), 6.98 (d, J= 16.5Hz, 1H), 6.67 (d, J= 2.0Hz, 2H), 6.55 (s, NH), 6.41 (s, 1H), 4.84 (s, NH), 4.33 (t, J = 5.0Hz, 2H), 4.11 (s, 1H), 3.84 (s, 6H), 3.64 (dd, J= 5.0, 10.5Hz, 2H), 1.73-1.66 (m, 2H), 1.51-1.47 (m, 1H), 1.45 (s, 9H), 0.96-0.94 (m, 6H). Mass found [M - Boc + H] + = 457.3; [M - Boc + Na] + = 479.2; [M + Na] + = 579.3; [2M + Na] + = 1135.5.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-3-メチル-1-オキソペンタン-2-イル)カルバメート(4e)
4aと同様の合成手順で2eから4eを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-3-methyl-1-oxopentan-2-yl)carbamate (4e)
4e was obtained from 2e via a similar synthetic procedure to 4a.

収率27%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.51 (d, J = 8.0 Hz, 2H), 7.17 (d, J = 9.0 Hz, 2H), 7.06 (d, J = 16.5 Hz, 1H), 6.99 (d, J = 16.5 Hz, 1H), 6.66 (d, J = 2.5 Hz, 2H), 6.41-6.40 (m, 2H), 5.02 (s, NH), 4.34 (t, J = 5.0 Hz, 2H), 3.98-3.94 (m, 1H), 3.83 (s, 6H), 3.71-3.61 (m, 2H), 1.92-1.91 (m, 1H), 1.57-1.51
(m, 1H), 1.45 (s, 9H), 1.18-1.09 (m, 1H), 0.95-0.88 (m, 6H). Mass found [M - Boc + H]+ = 457.3; [M + Na]+ = 579.3; [2M + H]+ = 1135.5。
Yield 27%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.51 (d, J = 8.0 Hz, 2H), 7.17 (d, J = 9.0 Hz, 2H), 7.06 (d, J = 16.5 Hz, 1H), 6.99 (d, J = 16.5 Hz, 1H), 6.66 (d, J = 2.5 Hz, 2H), 6.41-6.40 (m, 2H), 5.02 (s, NH), 4.34 (t, J = 5.0 Hz, 2H), 3.98-3.94 (m, 1H), 3.83 (s, 6H), 3.71-3.61 (m, 2H), 1.92-1.91 (m, 1H), 1.57-1.51
(m, 1H), 1.45 (s, 9H), 1.18-1.09 (m, 1H), 0.95-0.88 (m, 6H). Mass found [M-Boc+H] + = 457.3; [M+Na] + = 579.3; [2M+H] + = 1135.5.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-4-(メチルチオ)-1-オキソブタン-2-イル)カルバメート(4f)
4aと同様の合成手順で2fから4fを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-4-(methylthio)-1-oxobutan-2-yl)carbamate (4f)
4f was obtained from 2f via a similar synthetic procedure to 4a.

収率49%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.52 (d, J= 8.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.64 (s, NH), 6.41 (t, J = 2.0 Hz, 1H), 5.16 (s, 1H), 4.34 (t, J
= 5.0 Hz, 2H), 4.32-4.28 (m, 1H), 3.84 (s, 6H), 3.69-3.61 (m, 2H), 2.63-2.52 (m, 2H), 2.16-2.08 (m, 4H), 1.98-1.92 (m, 1H), 1.45 (s, 9H). Mass found [M - Boc +
H]+ = 476.2; [M + H]+ = 576.3; [M + Na]+= 598.3。
Yield: 49%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.52 (d, J= 8.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.64 (s, NH), 6.41 (t, J = 2.0 Hz, 1H), 5.16 (s, 1H), 4.34 (t, J
= 5.0 Hz, 2H), 4.32-4.28 (m, 1H), 3.84 (s, 6H), 3.69-3.61 (m, 2H), 2.63-2.52 (m, 2H), 2.16-2.08 (m, 4H), 1.98-1.92 (m, 1H), 1.45 (s, 9H). Mass found [M - Boc +
[H] + = 476.2; [M + H] + = 576.3; [M + Na] + = 598.3.

tert-ブチル(E)-(3-(tert-ブトキシ)-1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソプロパン-2-イル)カルバメート(4g)
4aと同様の合成手順で2gから4gを得た。
tert-Butyl (E)-(3-(tert-butoxy)-1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxopropan-2-yl)carbamate (4g)
4g was obtained from 2g by the same synthetic procedure as for 4a.

収率46%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.16 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.41 (t, J= 2.0 Hz, 1H), 5.44 (s, NH), 4.33 (t, J = 5.0 Hz, 2H),
4.19 (s, 1H), 3.84 (s, 6H), 3.80 (s, 1H), 3.68-3.64 (m, 2H), 3.41-3.39 (m, 1H),
1.46 (s, 9H), 1.20 (s, 9H). Mass found [M - Boc - tBu + H]+= 432.3; [M + H]+ = 588.5; [M + Na]+ = 610.4; [2M + H]+= 1174.8; [2M + Na]+ = 1196.9。
Yield: 46%. 1H -NMR ( CDCl3 , 500 MHz), δ (ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.16 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.41 (t, J= 2.0 Hz, 1H), 5.44 (s, NH), 4.33 (t, J = 5.0 Hz, 2H),
4.19 (s, 1H), 3.84 (s, 6H), 3.80 (s, 1H), 3.68-3.64 (m, 2H), 3.41-3.39 (m, 1H),
1.46 (s, 9H), 1.20 (s, 9H). Mass found [M - Boc - tBu + H] + = 432.3; [M + H] + = 588.5; [M + Na] + = 610.4; [2M + H] + = 1174.8; [2M + Na] + = 1196.9.

tert-ブチル(E)-(3-(tert-ブトキシ)-1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソブタン-2-イル)カルバメート(4h)
4aと同様の合成手順で2hから4hを得た。
tert-Butyl (E)-(3-(tert-butoxy)-1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxobutan-2-yl)carbamate (4h)
4h was obtained from 2h via a similar synthetic procedure to 4a.

収率48%。1H-NMR (CDCl3, 500 MHz), δ (ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.34 (s, NH), 7.16 (d, J = 8.5 Hz, 2H), 7.06 (d, J = 16.5 Hz, 1H), 6.99 (d, J = 16.5 Hz, 1H), 6.66 (d, J = 2.5 Hz, 2H), 6.41 (t, J = 2.5 Hz, 1H), 5.64 (d, J= 5.0 Hz, NH), 4.37-4.31 (m, 2H), 4.15-4.13 (m, 2H), 3.84 (s, 6H), 3.69-3.65 (m, 2H), 1.46
(s, 9H), 1.28 (s, 9H), 1.07 (d, J = 6.0 Hz, 3H). Mass found [M - Boc - tBu + H]+ = 446.2; [M + H]+= 602.5; [M + Na]+ = 624.4; [2M + H]+ = 1202.9; [2M + Na]+= 1224.9。
Yield: 48%. 1H -NMR ( CDCl3 , 500MHz), δ (ppm): 7.51 (d, J = 8.0Hz, 2H), 7.34 (s, NH), 7.16 (d, J = 8.5Hz, 2H), 7.06 (d, J = 16.5Hz, 1H), 6.99 (d, J = 16.5Hz, 1H), 6.66 (d, J = 2.5Hz, 2H), 6.41 (t, J = 2.5Hz, 1H), 5.64 (d, J = 5.0Hz, NH), 4.37-4.31 (m, 2H), 4.15-4.13 (m, 2H), 3.84 (s, 6H), 3.69-3.65 (m, 2H), 1.46
(s, 9H), 1.28 (s, 9H), 1.07 (d, J = 6.0 Hz, 3H). Mass found [M - Boc - tBu + H] + = 446.2; [M + H] + = 602.5; [M + Na] + = 624.4; [2M + H] + = 1202.9; [2M + Na] + = 1224.9.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソ-3-(トリチルチオ)プロパン-2-イル)カルバメート(4i)
4aと同様の合成手順で2iから4iを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxo-3-(tritylthio)propan-2-yl)carbamate (4i)
4i was obtained from 2i via a similar synthetic procedure to 4a.

収率27%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.49 (d, J= 8.5 Hz, 2H), 7.44-7.42 (m, 6H), 7.31-7.28 (m, 6H), 7.24-7.21 (m, 3H), 7.14 (d, J = 8.5 Hz, 2H), 7.06
(d, J = 16.5 Hz, 1H), 6.99 (d, J= 16.0 Hz, 1H), 6.66 (d, J= 2.5 Hz, 2H), 6.41 (t, J= 2.0 Hz, 1H), 6.40 (s, 1H), 4.79 (s, 1H), 4.28 (t, J = 5.0 Hz, 2H), 3.84 (s, 6H), 3.57-3.56 (m, 2H), 2.80-2.77 (m, 1H), 2.58-2.56 (m, 1H), 1.42 (s, 9H), Mass found [M + H]+= 789.3; [M + Na]+ = 811.3。
Yield: 27%. 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 7.49 (d, J= 8.5 Hz, 2H), 7.44-7.42 (m, 6H), 7.31-7.28 (m, 6H), 7.24-7.21 (m, 3H), 7.14 (d, J = 8.5 Hz, 2H), 7.06
(d, J = 16.5 Hz, 1H), 6.99 (d, J= 16.0 Hz, 1H), 6.66 (d, J= 2.5 Hz, 2H), 6.41 (t, J= 2.0 Hz, 1H), 6.40 (s, 1H), 4.79 (s, 1H), 4.28 (t, J = 5.0 Hz, 2H), 3.84 (s, 6H), 3.57-3.56 (m, 2H), 2.80-2.77 (m, 1H), 2.58-2.56 (m, 1H), 1.42 (s, 9H), Mass found [M + H] + = 789.3; [M + Na] + = 811.3.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソ-3-フェニルプロパン-2-イル)カルバメート(4j)
4aと同様の合成手順で2jから4jを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (4j)
4j was obtained from 2j via a similar synthetic procedure to 4a.

収率46%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.52 (d, J= 9.0 Hz, 2H), 7.33-7.30 (m, 2H), 7.24-7.21 (m, 3H), 7.17 (d, J = 9.0 Hz, 2H), 7.07 (d, J = 16.5 Hz, 1H), 7.00 (d, J = 16.5 Hz, 1H), 6.67 (s, 2H), 6.41 (s, 1H), 6.13 (brs, NH), 5.03 (brs, NH), 4.34 (s, 1H) , 4.24-4.23 (m, 1H), 4.17 (s, 1H), 3.84 (s, 6H), 3.56 (s
, 2H), 3.11-3.02 (m, 2H), 1.42 (s, 9H). Mass found [M - Boc + H]+= 492.2; [M + H]+ = 592.4; [M + Na]+ = 614.3。
Yield: 46%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.52 (d, J= 9.0Hz, 2H), 7.33-7.30 (m, 2H), 7.24-7.21 (m, 3H), 7.17 (d, J = 9.0Hz, 2H), 7.07 (d, J = 16.5Hz, 1H), 7.00 (d, J = 16.5Hz, 1H), 6.67 (s, 2H), 6.41 (s, 1H), 6.13 (brs, NH), 5.03 (brs, NH), 4.34 (s, 1H), 4.24-4.23 (m, 1H), 4.17 (s, 1H), 3.84 (s, 6H), 3.56 (s
, 2H), 3.11-3.02 (m, 2H), 1.42 (s, 9H). Mass found [M - Boc + H] + = 492.2; [M + H] + = 592.4; [M + Na] + = 614.3.

tert-ブチル(E)-(3-(4-(tert-ブトキシ)フェニル)-1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソプロパン-2-イル)カルバメート(4k)
4aと同様の合成手順で2kから4kを得た。
tert-Butyl (E)-(3-(4-(tert-butoxy)phenyl)-1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxopropan-2-yl)carbamate (4k)
4k was obtained from 2k via a similar synthetic procedure to 4a.

収率39%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.10 (d, J= 7.5 Hz, 2H),7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.93 (d, J= 8.5 Hz, 2H), 6.66 (d, J= 2.0 Hz, 2H), 6.41 (s, 1H), 6.18 (t, J = 6.0 Hz, NH), 5.01 (brs, NH), 4.31-4.24 (m, 2H), 4.23-4.19 (m, 1H), 3.84 (s, 6H), 3.60-3.52 (m, 2H), 3.07-2.99 (m, 2H), 1.45 (s, 9H), 1.32 (s, 9H). Mass found [M - Boc - tBu + H]+ = 508.2; [M - Boc + H]+= 564.3; [M + H]+ = 664.4, [M + Na]+ = 686.4; [M + K]+= 702.4。 Yield: 39%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.51 (d, J= 8.0Hz, 2H), 7.18 (d, J= 9.0Hz, 2H), 7.10 (d, J= 7.5Hz, 2H),7.06 (d, J= 16.5Hz, 1H), 6.99 (d, J= 16.5Hz, 1H), 6.93 (d, J= 8.5Hz, 2H), 6.66 (d, J= 2.0Hz, 2H), 6.41 (s, 1H), 6.18 (t, J = 6.0Hz, NH), 5.01 (brs, NH), 4.31-4.24 (m, 2H), 4.23-4.19 (m, 1H), 3.84 (s, 6H), 3.60-3.52 (m, 2H), 3.07-2.99 (m, 2H), 1.45 (s, 9H), 1.32 (s, 9H). Mass found [M - Boc - tBu + H] + = 508.2; [M - Boc + H] + = 564.3; [M + H] + = 664.4, [M + Na] + = 686.4; [M + K] + = 702.4.

tert-ブチル(E)-3-(2-((tert-ブトキシカルボニル)アミノ)-3-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-3-オキソプロピル)-1H-インドール-1-カルボキシラート(4l)
4aと同様の合成手順で2lから4lを得た。
tert-Butyl (E)-3-(2-((tert-butoxycarbonyl)amino)-3-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-3-oxopropyl)-1H-indole-1-carboxylate (4l)
4l was obtained from 2l via a similar synthetic procedure to 4a.

収率30%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 8.14-8.12 (m, 1H), 7.59 (d, J = 7.5 Hz, 1H), 7.51-7.47 (m, 3H), 7.32 (t, J = 8.5 Hz, 1H), 7.26-7.24 (m, 2H), 7.14 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.41 (t, J= 2.5 Hz, 1H), 6.30 (s, NH), 5.18 (s, NH), 4.22-4.18 (m, 1H), 4.18-4.10 (m, 1H), 3.83 (s, 6H), 3.52-3.51 (m, 2H), 3.22-3.17 (m, 2H), 1.65 (s, 9H) 1.42 (s, 9H). Mass found [M - 2Boc + H]+ = 530.2; [M - Boc + H]+ = 630.2; [M + H]+ = 730.2; [2M + H]+= 1459.5。 Yield: 30%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 8.14-8.12 (m, 1H), 7.59 (d, J = 7.5 Hz, 1H), 7.51-7.47 (m, 3H), 7.32 (t, J = 8.5 Hz, 1H), 7.26-7.24 (m, 2H), 7.14 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.41 (t, J= 2.5 Hz, 1H), 6.30 (s, NH), 5.18 (s, NH), 4.22-4.18 (m, 1H), 4.18-4.10 (m, 1H), 3.83 (s, 6H), 3.52-3.51 (m, 2H), 3.22-3.17 (m, 2H), 1.65 (s, 9H) 1.42 (s, 9H). Mass found [M - 2Boc + H] + = 530.2; [M - Boc + H] + = 630.2; [M + H] + = 730.2; [2M + H] + = 1459.5.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソ-3-(1-トリチル-1H-イミダゾール-2-イル)プロパン-2-イル)カルバメート(4m)
4aと同様の合成手順で2mから4mを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxo-3-(1-trityl-1H-imidazol-2-yl)propan-2-yl)carbamate (4m)
4m was obtained from 2m via a similar synthetic procedure to 4a.

収率62%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 8.18 (s, 1H), 7.46 (d, J = 8.5 Hz, 2H), 7.43-7.38 (m, 9H), 7.15 (d, J = 8.5 Hz, 2H), 7.12-7.10 (m, 6H), 7.03 (d,
J= 16.5 Hz, 1H), 6.96 (d, J= 16.5 Hz, 1H), 6.91 (s, 1H), 6.66 (d, J = 2.5 Hz, 2H), 6.41 (t, J = 2.5 Hz, 1H), 5.69 (d, J = 8.0 Hz, NH), 4.50-4.45 (m, 1H), 4.37-4.32 (m, 1H), 4.28-4.26 (m, 1H), 3.84 (s, 6H), 3.64-3.50 (m, 2H), 3.28-3.23 (m, 1H), 3.08-3.06 (m, 1H), 1.38 (s, 9H). Mass found [M + H]+ = 832.4。
Yield 62%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 8.18 (s, 1H), 7.46 (d, J = 8.5 Hz, 2H), 7.43-7.38 (m, 9H), 7.15 (d, J = 8.5 Hz, 2H), 7.12-7.10 (m, 6H), 7.03 (d,
J= 16.5 Hz, 1H), 6.96 (d, J= 16.5 Hz, 1H), 6.91 (s, 1H), 6.66 (d, J = 2.5 Hz, 2H), 6.41 (t, J = 2.5 Hz, 1H), 5.69 (d, J = 8.0 Hz, NH), 4.50-4.45 (m, 1H), 4.37-4.32 (m, 1H), 4.28-4.26 (m, 1H), 3.84 (s, 6H), 3.64-3.50 (m, 2H), 3.28-3.23 (m, 1H), 3.08-3.06 (m, 1H), 1.38 (s, 9H). Mass found [M + H] + = 832.4.

ジ-tert-ブチル(6-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-6-オキソヘキサン-1,5-ジイル)(E)-ジカルバメート(4n)
4aと同様の合成手順で2nから4nを得た。
Di-tert-butyl(6-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-6-oxohexane-1,5-diyl)(E)-dicarbamate (4n)
4n was obtained from 2n by a similar synthetic procedure to 4a.

収率39%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.62 (brs, NH), 6.41 (t, J = 2.0 Hz, 1H), 5.13 (brs, NH), 4.61 (b
rs, NH), 4.34 (t, J = 5.0 Hz, 2H), 4.07 (s, 1H), 3.84 (s, 6H), 3.69-3.62 (m, 2H), 3.12-3.11 (m, 2H) 1.90-1.83 (m, 1H), 1.67-1.61 (m, 1H), 1.57-1.47 (m, 2H), 1.45-1.42 (m, 18H), 1.40-1.37 (m, 2H). Mass found [M-2Boc+H]+ = 473.0; [M-Boc+H]+= 573.4; [M + H]+ = 673.4, [M + Na]+ = 695.4, [M + K]+= 711.4。
Yield: 39%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.62 (brs, NH), 6.41 (t, J = 2.0 Hz, 1H), 5.13 (brs, NH), 4.61 (b
rs, NH), 4.34 (t, J = 5.0 Hz, 2H), 4.07 (s, 1H), 3.84 (s, 6H), 3.69-3.62 (m, 2H), 3.12-3.11 (m, 2H) 1.90-1.83 (m, 1H), 1.67-1.61 (m, 1H), 1.57-1.47 (m, 2H), 1.45-1.42 (m, 18H), 1.40-1.37 (m, 2H). Mass found [M-2Boc+H] + = 473.0; [M-Boc+H] + = 573.4; [M + H] + = 673.4, [M + Na] + = 695.4, [M + K] + = 711.4.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソ-5-(3-((2,2,4,6,7-ペンタメチル-2,3-ジヒドロベンゾフラン-5-イル)スルホニル)グアニジノ)ペンタン-2-イル)カルバメート(4o)
4aと同様の合成手順で2oから4oを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxo-5-(3-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-yl)sulfonyl)guanidino)pentan-2-yl)carbamate (4o)
4o was obtained from 2o via a similar synthetic procedure to 4a.

収率29%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.46 (d, J= 8.0 Hz, 2H), 7.39 (brs, NH), 7.13 (d, J = 9.0 Hz, 2H), 7.04 (d, J = 16.5 Hz, 1H), 6.97 (d, J = 16.5 Hz, 1H), 6.65 (d, J = 1.0 Hz, 2H), 6.40 (s, 1H), 6.27 (brs, NH), 5.57 (d, J = 6.0 Hz, NH), 4.33-4.29 (m, 2H), 4.25 (s, 1H), 3.83 (s, 6H), 3.68-3.62 (m, 1H), 3.59-3.55 (m, 1H), 3.30-3.25 (m, 2H), 2.93 (s, 2H), 2.57 (s, 3H), 2.50 (s, 3H), 2.08 (s, 3H), 1.69-1.55 (m, 4H), 1.44 (s, 6H), 1.42 (s, 9H). Mass found [M + H]+ = 852.3。 Yield: 29%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.46 (d, J = 8.0Hz, 2H), 7.39 (brs, NH), 7.13 (d, J = 9.0Hz, 2H), 7.04 (d, J = 16.5Hz, 1H), 6.97 (d, J = 16.5Hz, 1H), 6.65 (d, J = 1.0Hz, 2H), 6.40 (s, 1H), 6.27 (brs, NH), 5.57 (d, J = 6.0Hz, NH), 4.33-4.29 (m, 2H), 4.25 (s, 1H), 3.83 (s, 6H), 3.68-3.62 (m, 1H), 3.59-3.55 (m, 1H), 3.30-3.25 (m, 2H), 2.93 (s, 2H), 2.57 (s, 3H), 2.50 (s, 3H), 2.08 (s, 3H), 1.69-1.55 (m, 4H), 1.44 (s, 6H), 1.42 (s, 9H). Mass found [M + H] + = 852.3.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1,4-ジオキソ-4-(トリチルアミノ)ブタン-2-イル)カルバメート(4p)
4aと同様の合成手順で2pから4pを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1,4-dioxo-4-(tritylamino)butan-2-yl)carbamate (4p)
4p was obtained from 2p via a similar synthetic procedure to 4a.

収率28%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.50 (d, J= 8.5 Hz, 2H), 7.31-7.23 (m, 11H), 7.20-7.15 (m, 6H), 7.06 (d, J = 16.5 Hz, 1H), 6.99 (brs, NH), 6.98 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.41 (t, J= 2.0 Hz, 1H), 6.19 (brs, NH), 4.46-4.42 (m, 1H), 4.31-4.19 (m, 2H), 3.84 (s, 6H), 3.64-3.51 (m, 2H), 3.11-3.09 (m, 1H), 2.60-2.57 (m, 1H), 1.42 (s, 9H). Mass found [M + H]+ = 799.5。 Yield: 28%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.50 (d, J= 8.5 Hz, 2H), 7.31-7.23 (m, 11H), 7.20-7.15 (m, 6H), 7.06 (d, J = 16.5 Hz, 1H), 6.99 (brs, NH), 6.98 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.41 (t, J= 2.0 Hz, 1H), 6.19 (brs, NH), 4.46-4.42 (m, 1H), 4.31-4.19 (m, 2H), 3.84 (s, 6H), 3.64-3.51 (m, 2H), 3.11-3.09 (m, 1H), 2.60-2.57 (m, 1H), 1.42 (s, 9H). Mass found [M + H] + = 799.5.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1,5-ジオキソ-5-(トリチルアミノ)ペンタン-2-イル)カルバメート(4q)
4aと同様の合成手順で2qから4qを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1,5-dioxo-5-(tritylamino)pentan-2-yl)carbamate (4q)
4q was obtained from 2q by a synthetic procedure similar to that of 4a.

収率27%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.30-7.28 (m, 15H), 7.15 (d, J = 8.5 Hz, 2H), 7.05 (d, J = 16.5 Hz, 1H), 6.98 (d, J = 16.5 Hz, 1H), 6.76 (brs, NH), 6.67 (s, 2H), 6.62 (brs, NH), 6.41 (s, 1H), 5.53 (brs, NH), 4.27-4.26 (m, 1H), 4.15-4.12 (m, 1H), 3.99-3.96 (m, 1H), 3.84 (s, 6H), 3.56-3.54 (m, 1H), 3.47-3.46 (m, 1H), 2.53-2.50 (m, 1H), 2.45-2.40 (m, 1H), 2.04-1.87 (m, 2H), 1.42 (s, 9H). Mass found [M + H]+ = 814.3。 Yield: 27%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.48 (d, J = 8.5 Hz, 2H), 7.30-7.28 (m, 15H), 7.15 (d, J = 8.5 Hz, 2H), 7.05 (d, J = 16.5 Hz, 1H), 6.98 (d, J = 16.5 Hz, 1H), 6.76 (brs, NH), 6.67 (s, 2H), 6.62 (brs, NH), 6.41 (s, 1H), 5.53 (brs, NH), 4.27-4.26 (m, 1H), 4.15-4.12 (m, 1H), 3.99-3.96 (m, 1H), 3.84 (s, 6H), 3.56-3.54 (m, 1H), 3.47-3.46 (m, 1H), 2.53-2.50 (m, 1H), 2.45-2.40 (m, 1H), 2.04-1.87 (m, 2H), 1.42 (s, 9H). Mass found [M + H] + = 814.3.

tert-ブチル(E)-3-((tert-ブトキシカルボニル)アミノ)-4-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-4-オキソブタノエート(4r)
4aと同様の合成手順で2rから4rを得た。
tert-Butyl (E)-3-((tert-butoxycarbonyl)amino)-4-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-4-oxobutanoate (4r)
4r was obtained from 2r via a similar synthetic procedure to 4a.

収率48%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.07 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.93 (brs,
NH), 6.66 (d, J = 2.0 Hz, 2H), 6.41 (s, 1H), 5.68 (brs, NH), 4.47 (s, 1H), 4.32
(t, J= 5.5 Hz, 2H), 3.83 (s, 6H), 3.64-3.63 (m, 2H), 2.90 (dd, J = 5.0, 17.5 Hz, 1H), 2.62 (dd, J = 6.5, 17.0 Hz, 1H), 1.46 (s, 9H), 1.45 (s, 9H). Mass found [M-Boc-tBu+H]+= 460.1; [M + H]+ = 616.3; [M + Na]+ = 638.3。
Yield: 48%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.51 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.07 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.93 (brs,
NH), 6.66 (d, J = 2.0 Hz, 2H), 6.41 (s, 1H), 5.68 (brs, NH), 4.47 (s, 1H), 4.32
(t, J= 5.5 Hz, 2H), 3.83 (s, 6H), 3.64-3.63 (m, 2H), 2.90 (dd, J = 5.0, 17.5 Hz, 1H), 2.62 (dd, J = 6.5, 17.0 Hz, 1H), 1.46 (s, 9H), 1.45 (s, 9H). Mass found [M-Boc-tBu+H] + = 460.1; [M + H] + = 616.3; [M + Na] + = 638.3.

tert-ブチル(E)-4-((tert-ブトキシカルボニル)アミノ)-5-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-5-オキソペンタノエート(4s)
4aと同様の合成手順で2sから4sを得た。
tert-Butyl (E)-4-((tert-butoxycarbonyl)amino)-5-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-5-oxopentanoate (4s)
4s was obtained from 2s via a similar synthetic procedure to 4a.

収率55%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.76 (brs,
NH), 6.66 (d, J = 2.0 Hz, 2H), 6.41 (d, J = 2.0 Hz, 1H), 5.29 (brs, NH), 4.33 (t, J = 5.5 Hz, 2H), 4.14 (s, 1H), 3.83 (s, 6H), 3.69-3.63 (m, 2H), 2.46-2.40 (m,
1H), 2.35-2.29 (m, 1H), 2.13-2.06 (m, 1H), 1.94-1.87 (m, 1H), 1.46 (s, 9H), 1.44 (s, 9H). Mass found [M - Boc - OtBu + H]+ = 456.1, [M - Boc - tBu + H]+= 474.0; [M + H]+ = 630.4; [M + Na]+ = 652.3。
Yield: 55%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.76 (brs,
NH), 6.66 (d, J = 2.0 Hz, 2H), 6.41 (d, J = 2.0 Hz, 1H), 5.29 (brs, NH), 4.33 (t, J = 5.5 Hz, 2H), 4.14 (s, 1H), 3.83 (s, 6H), 3.69-3.63 (m, 2H), 2.46-2.40 (m,
1H), 2.35-2.29 (m, 1H), 2.13-2.06 (m, 1H), 1.94-1.87 (m, 1H), 1.46 (s, 9H), 1.44 (s, 9H). Mass found [M-Boc-OtBu + H] + = 456.1, [M-Boc-tBu + H] + = 474.0; [M + H] + = 630.4; [M + Na] + = 652.3.

(E)-2-(2-アミノアセトアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5a)
DCM(10mL)中の化合物4a(726mg、1.5mmol)の撹拌溶液に1,4-ジオキサン(7.25mL)中の4M HClを加え、混合物を室温で3時間撹拌した。その後、反応溶液を蒸発させ、分取HPLC精製に供した(バッファーとしてTFA、詳細なグラジエント溶出は下記情報を参照のこと)。その後、水性画分を濃塩酸数滴で処理し、凍結乾燥して化合物5a(602mg,収率95%)を白色固体として得た。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.07 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.5 Hz, 2H), 6.40 (t, J= 2.5 Hz, 1H), 4.33 (t, J= 5.5 Hz, 2H), 3.80 (s, 6H), 3.71 (s, 2H), 3.61 (t, J = 5.5 Hz, 2H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 166.26, 161.12, 153.66, 150.50, 139.18, 135.47, 128.95, 127.43, 127.19, 120.96, 104.22, 99.60, 66.73, 54.39, 40.09, 38.13; Mass found [M - HCl + H]+ = 402.2; [M - HCl + Na]+= 424.2; [M - HCl + K]+ = 440.1; [2M - 2HCl + H]+ = 802.3; [2M - 2HCl + Na]+ = 824.4。
(E)-2-(2-aminoacetamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5a)
To a stirred solution of compound 4a (726 mg, 1.5 mmol) in DCM (10 mL) was added 4M HCl in 1,4-dioxane (7.25 mL) and the mixture was stirred at room temperature for 3 h. The reaction solution was then evaporated and subjected to preparative HPLC purification (TFA as buffer, detailed gradient elution see information below). The aqueous fraction was then treated with a few drops of concentrated hydrochloric acid and lyophilized to give compound 5a (602 mg, 95% yield) as a white solid. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 9.0Hz, 2H), 7.18 (d, J= 9.0Hz, 2H), 7.14 (d, J= 16.5Hz, 1H), 7.07 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.5Hz, 2H), 6.40 (t, J= 2.5Hz, 1H), 4.33 (t, J= 5.5Hz, 2H), 3.80 (s, 6H), 3.71 (s, 2H), 3.61 (t, J = 5.5Hz, 2H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 166.26, 161.12, 153.66, 150.50, 139.18, 135.47, 128.95, 127.43, 127.19, 120.96, 104.22, 99.60, 66.73, 54.39, 40.09, 38.13; Mass found [M - HCl + H] + = 402.2; [M - HCl + Na] + = 424.2; [M - HCl + K] + = 440.1; [2M - 2HCl + H] + = 802.3; [2M - 2HCl + Na] + = 824.4.

カラム:Inertsil ODS-3 C18,5um,30*250mm
流量:38ml/分
溶媒A:HO中10%ACN+0.1%TFA
溶媒B:HO中90%ACN+0.1%TFA
グラジエント:
Column: Inertsil ODS-3 C18, 5um, 30*250mm
Flow rate: 38 ml/min Solvent A: 10% ACN + 0.1% TFA in H2O
Solvent B: 90% ACN + 0.1% TFA in H2O
Gradient:

(E)-2-(2-アミノプロパンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5b)
5aと同様の合成手順で4bから5bを得た。
(E)-2-(2-aminopropanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5b)
5b was obtained from 4b via a similar synthetic procedure to 5a.

収率98%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 8.5 Hz, 2H), 7.17 (d, J= 8.5 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 4.37-4.31 (m, 2H), 3.97-3.93 (m, 1H), 3.80 (s, 6H), 3.67-3.62 (m, 1H), 3.59-3.54 (m, 1H), 1.50 (d, J = 7.0 Hz, 3H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 169.97, 161.14, 153.67, 150.51, 139.18, 135.48, 128.96, 127.42, 127.18, 120.95, 104.21, 99.59, 66.62, 54.39, 48.86, 38.22, 16.24;
Mass found [M - HCl + H]+ = 416.2; [M - HCl + Na]+ = 438.2; [2M - HCl + H]+ = 830.5; [2M - 2HCl + Na]+ = 852.4。
Yield: 98%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 8.5Hz, 2H), 7.17 (d, J= 8.5Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.08 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 4.37-4.31 (m, 2H), 3.97-3.93 (m, 1H), 3.80 (s, 6H), 3.67-3.62 (m, 1H), 3.59-3.54 (m, 1H), 1.50 (d, J = 7.0Hz, 3H); 13C -NMR (CD3OD , 125MHz), δ(ppm): 169.97, 161.14, 153.67, 150.51, 139.18, 135.48, 128.96, 127.42, 127.18, 120.95, 104.21, 99.59, 66.62, 54.39, 48.86, 38.22, 16.24;
Mass found [M - HCl + H] + = 416.2; [M - HCl + Na] + = 438.2; [2M - HCl + H] + = 830.5; [2M - 2HCl + Na] + = 852.4.

(E)-2-(2-アミノ-3-メチルブタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5c)
5aと同様の合成手順で4cから5cを得た。
(E)-2-(2-amino-3-methylbutanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5c)
5c was obtained from 4c via a similar synthetic procedure to 5a.

収率99%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.43 (d, J= 7.0 Hz, 2H), 7.13 (d, J= 7.0 Hz, 2H), 6.99-6.88 (m, 2H), 6.60 (s, 2H), 6.36 (s, 1H), 4.37-4.30 (m, 2H), 4.15 (brs, 1H), 3.77 (s, 6H), 3.50 (brs, 1H), 2.98-2.92 (m, 2H), 2.34-2.33 (m, 1H), 1.10-1.05 (m, 6H); 13C- NMR (CDCl3, 125 MHz), δ(ppm): 168.94, 160.94, 153.59, 150.23, 138.99, 135.32, 129.23, 127.78, 127.55, 121.33, 104.61, 100.11, 66.81, 58.91, 55.32, 38.42, 30.18, 18.60, 18.16; Mass found [M - HCl + H]+ = 444.1; [M - HCl + Na]+= 466.1。 Yield: 99%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.43 (d, J= 7.0 Hz, 2H), 7.13 (d, J= 7.0 Hz, 2H), 6.99-6.88 (m, 2H), 6.60 (s, 2H), 6.36 (s, 1H), 4.37-4.30 (m, 2H), 4.15 (brs, 1H), 3.77 (s, 6H), 3.50 (brs, 1H), 2.98-2.92 (m, 2H), 2.34-2.33 (m, 1H), 1.10-1.05 (m, 6H); 13C -NMR ( CDCl3 , 125 MHz), δ(ppm): 168.94, 160.94, 153.59, 150.23, 138.99, 135.32, 129.23, 127.78, 127.55, 121.33, 104.61, 100.11, 66.81, 58.91, 55.32, 38.42, 30.18, 18.60, 18.16; Mass found [M - HCl + H] + = 444.1; [M - HCl + Na] + = 466.1.

(E)-2-(2-アミノ-4-メチルペンタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5d)
5aと同様の合成手順で4dから5dを得た。
(E)-2-(2-amino-4-methylpentanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5d)
5d was obtained from 4d by a similar synthetic procedure to 5a.

収率95%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 4.40-4.30 (m, 2H), 3.88-3.86 (m, 1H), 3.80 (s, 6H), 3.72-3.67 (m, 1H), 3.55-3.50 (m, 1H), 1.75-1.67 (m, 3H), 1.00 (t, J = 5.5 Hz, 6H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 169.66, 161.15, 153.61, 150.51, 139.19, 135.49, 128.98, 127.42, 127.18, 120.92, 104.23, 99.61, 66.53, 54.39, 51.70, 43.34, 38.21, 24.05, 21.61, 20.82; Mass found [M - HCl + H]+= 457.2; [2M -
2HCl + H]+ = 913.3。
Yield: 95%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 8.5Hz, 2H), 7.18 (d, J= 8.5Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.08 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 4.40-4.30 (m, 2H), 3.88-3.86 (m, 1H), 3.80 (s, 6H), 3.72-3.67 (m, 1H), 3.55-3.50 (m, 1H), 1.75-1.67 (m, 3H), 1.00 (t, J = 5.5 Hz, 6H); 13 C-NMR (CD 3 OD, 125 MHz), δ(ppm): 169.66, 161.15, 153.61, 150.51, 139.19, 135.49, 128.98, 127.42, 127.18, 120.92, 104.23, 99.61, 66.53, 54.39, 51.70, 43.34, 38.21, 24.05, 21.61, 20.82; Mass found [M - HCl + H] + = 457.2; [2M -
2HCl + H] + = 913.3.

(E)-2-(2-アミノ-3-メチルペンタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5e)
5aと同様の合成手順で4eから5eを得た。
(E)-2-(2-amino-3-methylpentanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5e)
5e was obtained from 4e via a similar synthetic procedure to 5a.

収率98%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.59 (d, J= 8.5 Hz, 2H), 7.17 (d, J= 8.5 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 4.40-4.36 (m, 1H), 4.33-4.28 (m, 1H), 3.80 (s, 6H), 3.78-3.72 (m, 2H), 3.52-3.47 (m, 1H), 1.95-1.92 (m, 1H), 1.63-1.58 (m, 1H), 1.28-1.22 (m, 1H), 1.05 (d, J = 7.0 Hz, 3H), 0.98 (t, J= 7.0 Hz, 3H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.41, 161.15, 153.56, 150.50, 139.19, 135.49,
128.97, 127.43, 127.18, 120.92, 104.23, 99.61, 66.60, 57.68, 54.39, 38.05, 36.62, 24.19, 13.66, 10.32; Mass found [M - HCl + H]+ = 457.2; [2M - 2HCl + H]+ = 91
3.3。
Yield: 98%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.59 (d, J= 8.5Hz, 2H), 7.17 (d, J= 8.5Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.08 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 4.40-4.36 (m, 1H), 4.33-4.28 (m, 1H), 3.80 (s, 6H), 3.78-3.72 (m, 2H), 3.52-3.47 (m, 1H), 1.95-1.92 (m, 1H), 1.63-1.58 (m, 1H), 1.28-1.22 (m, 1H), 1.05 (d, J = 7.0 Hz, 3H), 0.98 (t, J = 7.0 Hz, 3H); 13C -NMR (CD 3 OD, 125 MHz), δ(ppm): 168.41, 161.15, 153.56, 150.50, 139.19, 135.49,
128.97, 127.43, 127.18, 120.92, 104.23, 99.61, 66.60, 57.68, 54.39, 38.05, 36.62, 24.19, 13.66, 10.32; Mass found [M - HCl + H] + = 457.2; [2M - 2HCl + H] + = 91
3.3.

(E)-2-(2-アミノ-4-(メチルチオ)ブタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5f)
5aと同様の合成手順で4fから5fを得た。
(E)-2-(2-amino-4-(methylthio)butanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5f)
5f was obtained from 4f via a similar synthetic procedure to 5a.

収率85%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.59 (d, J= 8.5 Hz, 2H), 7.19 (d, J= 8.5 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 4.42-4.38 (m, 1H), 4.33-4.28 (m, 1H), 3.99 (t, J = 6.5 Hz, 1H), 3.80 (s, 6H), 3.78-3.73 (m, 1H), 3.52-3.47 (m, 1H), 2.60
(t, J = 7.5 Hz, 2H), 2.18-2.11 (m, 2H), 2.09 (s, 3H); 13C-NMR (CD3OD, 125 MHz),
δ(ppm): 168.70, 161.14, 153.62, 150.49, 139.18, 135.49, 128.97, 127.43, 127.18, 120.99, 104.21, 99.60, 66.58, 54.39, 52.32, 38.21, 30.70, 28.33, 13.69; Mass found [M - HCl + H]+ = 476.2; [M - HCl + Na]+= 498.2; [2M - HCl + H]+ = 950.4。
Yield: 85%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.59 (d, J= 8.5Hz, 2H), 7.19 (d, J= 8.5Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.08 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 4.42-4.38 (m, 1H), 4.33-4.28 (m, 1H), 3.99 (t, J = 6.5Hz, 1H), 3.80 (s, 6H), 3.78-3.73 (m, 1H), 3.52-3.47 (m, 1H), 2.60
(t, J = 7.5 Hz, 2H), 2.18-2.11 (m, 2H), 2.09 (s, 3H); 13C -NMR ( CD3OD , 125 MHz),
δ(ppm): 168.70, 161.14, 153.62, 150.49, 139.18, 135.49, 128.97, 127.43, 127.18, 120.99, 104.21, 99.60, 66.58, 54.39, 52.32, 38.21, 30.70, 28.33, 13.69; Mass found [M - HCl + H] + = 476.2; [M - HCl + Na] + = 498.2; [2M - HCl + H] + = 950.4.

(E)-2-(2-アミノ-3-ヒドロキシプロパンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5g)
5aと同様の合成手順で4gから5gを得た。
(E)-2-(2-amino-3-hydroxypropanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5 g)
5g was obtained from 4g by the same synthetic procedure as for 5a.

収率76%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.07 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 4.34 (t, J= 5.0 Hz, 2H), 3.98-3.94 (m, 2H), 3.86-3.81 (m, 1H), 3.80 (s, 6H), 3.62-3.60 (m, 2H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 167.21, 161.13, 153.69, 150.51, 139.20, 135.47, 128.96, 127.44, 127.19, 120.97, 104.23, 99.61, 66.64, 60.30, 54.93, 54.40, 38.29; Mass found [M - HCl
+ H]+ = 431.2; [2M - 2HCl + H]+ = 861.2。
Yield: 76%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 9.0Hz, 2H), 7.18 (d, J= 9.0Hz, 2H), 7.14 (d, J= 16.5Hz, 1H), 7.07 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 4.34 (t, J= 5.0Hz, 2H), 3.98-3.94 (m, 2H), 3.86-3.81 (m, 1H), 3.80 (s, 6H), 3.62-3.60 (m, 2H); 13C -NMR ( CD3OD , 125 MHz), δ(ppm): 167.21, 161.13, 153.69, 150.51, 139.20, 135.47, 128.96, 127.44, 127.19, 120.97, 104.23, 99.61, 66.64, 60.30, 54.93, 54.40, 38.29; Mass found [M - HCl
[2M - 2HCl + H] + = 431.2; [2M - 2HCl + H] + = 861.2.

(E)-2-(2-アミノ-3-ヒドロキシブタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5h)
5aと同様の合成手順で4hから5hを得た。
(E)-2-(2-amino-3-hydroxybutanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5h)
5h was obtained from 4h via a similar synthetic procedure to 5a.

収率74%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 8.5 Hz, 2H), 7.17 (d, J= 8.5 Hz, 2H), 7.15 (d, J= 16.0 Hz, 1H), 7.07 (d, J= 16.0 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 4.38-4.31 (m, 2H), 4.06-4.01 (m, 1H), 3.80 (s, 6H), 3.72-3.65 (m, 2H), 3.58-3.53 (m, 1H), 1.31 (d, J = 6.0 Hz, 3H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 167.54, 161.14, 153.58, 150.50, 139.19, 135.49, 128.97, 127.43, 127.18, 120.95, 104.23, 99.61, 66.61, 65.97, 59.12, 54.40, 38.14,
18.91; Mass found [M - HCl + H]+ = 445.2; [2M - 2HCl + H]+= 889.2。
Yield: 74%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 8.5Hz, 2H), 7.17 (d, J= 8.5Hz, 2H), 7.15 (d, J= 16.0Hz, 1H), 7.07 (d, J= 16.0Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 4.38-4.31 (m, 2H), 4.06-4.01 (m, 1H), 3.80 (s, 6H), 3.72-3.65 (m, 2H), 3.58-3.53 (m, 1H), 1.31 (d, J = 6.0Hz, 3H); 13C -NMR (CD3OD , 125MHz), δ(ppm): 167.54, 161.14, 153.58, 150.50, 139.19, 135.49, 128.97, 127.43, 127.18, 120.95, 104.23, 99.61, 66.61, 65.97, 59.12, 54.40, 38.14,
18.91; Mass found [M - HCl + H] + = 445.2; [2M - 2HCl + H] + = 889.2.

(E)-2-(2-アミノ-3-メルカプトプロパンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5i)
DCM(15mL)中の化合物4i(760mg,1.0mmol)の撹拌溶液に、TFA(14.9mL)およびトリイソプロピルシラン(TIPS,790uL,3.9mmol)を加え、得られた混合物を室温で2時間撹拌した。その後、反応溶液を蒸発させ、分取HPLCによる精製に供した(バッファーとしてTFA、詳細なグラジエント溶出は下記情報を参照のこと)。その後、水性画分を濃塩酸数滴で処理し、凍結乾燥して化合物5i(354mg,76%)を白色固体として得た。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 1.5 Hz, 2H), 6.40 (s, 1H), 4.41-4.37 (m, 1H), 4.34-4.30 (m, 1H), 4.05 (t, J = 5.5 Hz, 1H), 3.80 (s, 6H), 3.74-3.69 (m, 1H)
, 3.57-3.52 (m, 1H), 3.06 (dd, J = 5.5, 14.5 Hz, 1H), 2.98 (dd, J = 6.5, 15.0 Hz, 1H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 167.31, 161.14, 153.63, 150.50, 139.19,
135.50, 128.97, 127.43, 127.18, 120.97, 104.23, 99.62, 66.61, 54.69, 54.39, 38.28, 24.96; Mass found [M - HCl + H]+= 448.2; [M - HCl + Na]+ = 470.2; [2M - 2HCl
+ H]+ = 894.4。
(E)-2-(2-amino-3-mercaptopropanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5i)
To a stirred solution of compound 4i (760 mg, 1.0 mmol) in DCM (15 mL) was added TFA (14.9 mL) and triisopropylsilane (TIPS, 790 uL, 3.9 mmol), and the resulting mixture was stirred at room temperature for 2 h. The reaction solution was then evaporated and subjected to purification by preparative HPLC (TFA as buffer, detailed gradient elution see information below). The aqueous fraction was then treated with a few drops of concentrated hydrochloric acid and lyophilized to give compound 5i (354 mg, 76%) as a white solid. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 9.0Hz, 2H), 7.18 (d, J= 9.0Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.08 (d, J= 16.5Hz, 1H), 6.71 (d, J= 1.5Hz, 2H), 6.40 (s, 1H), 4.41-4.37 (m, 1H), 4.34-4.30 (m, 1H), 4.05 (t, J = 5.5Hz, 1H), 3.80 (s, 6H), 3.74-3.69 (m, 1H).
, 3.57-3.52 (m, 1H), 3.06 (dd, J = 5.5, 14.5 Hz, 1H), 2.98 (dd, J = 6.5, 15.0 Hz, 1H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 167.31, 161.14, 153.63, 150.50, 139.19,
135.50, 128.97, 127.43, 127.18, 120.97, 104.23, 99.62, 66.61, 54.69, 54.39, 38.28, 24.96; Mass found [M - HCl + H] + = 448.2; [M - HCl + Na] + = 470.2; [2M - 2HCl
+ H] + = 894.4.

カラム:Inertsil ODS-3 C18,5um,30*250mm
流量:38mL/分
溶媒A:HO中10%ACN+0.1%TFA
溶媒B:HO中90%ACN+0.1%TFA
グラジエント:
Column: Inertsil ODS-3 C18, 5um, 30*250mm
Flow rate: 38 mL/min Solvent A: 10% ACN + 0.1% TFA in H2O
Solvent B: 90% ACN + 0.1% TFA in H2O
Gradient:

(E)-2-(2-アミノ-3-フェニルプロパンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5j)
5aと同様の合成手順で4jから5jを得た。
(E)-2-(2-amino-3-phenylpropanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5j)
5j was obtained from 4j via a similar synthetic procedure to 5a.

収率90%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 8.5 Hz, 2H), 7.38-7.35 (m, 2H), 7.31-7.29 (m, 3H), 7.18 (d, J = 8.5 Hz, 2H), 7.14 (d, J = 16.5 Hz, 1H), 7.07 (d, J = 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (d, J= 2.0 Hz, 1H),
4.24-4.20 (m, 2H), 4.07 (t, J = 7.5 Hz, 1H), 3.80 (s, 6H), 3.65-3.60 (m, 1H), 3.48-3.44 (m, 1H), 3.19 (dd, J= 7.5, 14.0 Hz, 1H), 3.09 (dd, J = 7.5, 14.0 Hz, 1H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.49, 161.14, 153.51, 150.50, 139.19, 135.49, 134.15, 129.12, 128.98,128.71, 127.48, 127.42, 127.19, 120.92, 104.23, 99.61, 66.66, 54.40, 54.40, 38.02, 37.29; Mass found [M - HCl + H]+= 491.3; [M - HCl + Na]+ = 513.2。
Yield 90%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 8.5Hz, 2H), 7.38-7.35 (m, 2H), 7.31-7.29 (m, 3H), 7.18 (d, J = 8.5Hz, 2H), 7.14 (d, J = 16.5Hz, 1H), 7.07 (d, J = 16.5Hz, 1H), 6.71 (d, J = 2.0Hz, 2H), 6.40 (d, J = 2.0Hz, 1H),
4.24-4.20 (m, 2H), 4.07 (t, J = 7.5 Hz, 1H), 3.80 (s, 6H), 3.65-3.60 (m, 1H), 3.48-3.44 (m, 1H), 3.19 (dd, J = 7.5, 14.0 Hz, 1H), 3.09 (dd, J = 7.5, 14.0 Hz, 1H); 13C -NMR (CD 3 OD, 125 MHz), δ(ppm): 168.49, 161.14, 153.51, 150.50, 139.19, 135.49, 134.15, 129.12, 128.98,128.71, 127.48, 127.42, 127.19, 120.92, 104.23, 99.61, 66.66, 54.40, 54.40, 38.02, 37.29; Mass found [M - HCl + H] + = 491.3; [M - HCl + Na] + = 513.2.

(E)-2-(2-アミノ-3-(4-ヒドロキシフェニル)プロパンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5k)
5aと同様の合成手順で4kから5kを得た。
(E)-2-(2-amino-3-(4-hydroxyphenyl)propanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5k)
5k was obtained from 4k via a similar synthetic procedure to 5a.

収率84%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.57 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.11 (d, J= 9.0 Hz, 2H), 7.06 (d, J=
16.5 Hz, 1H), 6.79 (d, J= 9.0 Hz, 2H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (s, 1H), 4.27-4.24 (m, 2H), 4.00 (t, J = 7.5 Hz, 1H), 3.80 (s, 6H), 3.66-3.61 (m, 1H), 3.50-3.45 (m, 1H), 3.10 (dd, J = 7.0, 14.0 Hz, 1H), 2.98 (dd, J = 7.0, 14.0 Hz, 1H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.67, 161.14, 156.89, 153.57, 150.51, 139.19, 135.47, 130.22, 128.96, 127.43, 127.18, 124.55, 121.00, 115.42, 104.22, 99.61, 66.68, 54.61, 54.39, 38.05, 36.54; Mass found [M - HCl + H]+ = 507.2; [2M - 2
HCl + H]+ = 1013.2。
Yield: 84%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.57 (d, J= 8.5Hz, 2H), 7.18 (d, J= 8.5Hz, 2H), 7.14 (d, J= 16.5Hz, 1H), 7.11 (d, J= 9.0Hz, 2H), 7.06 (d, J=
16.5 Hz, 1H), 6.79 (d, J= 9.0 Hz, 2H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (s, 1H), 4.27-4.24 (m, 2H), 4.00 (t, J = 7.5 Hz, 1H), 3.80 (s, 6H), 3.66-3.61 (m, 1H), 3.50-3.45 (m, 1H), 3.10 (dd, J = 7.0, 14.0 Hz, 1H), 2.98 (dd, J = 7.0, 14.0 Hz, 1H); 13 C-NMR (CD 3 OD, 125 MHz), δ(ppm): 168.67, 161.14, 156.89, 153.57, 150.51, 139.19, 135.47, 130.22, 128.96, 127.43, 127.18, 124.55, 121.00, 115.42, 104.22, 99.61, 66.68, 54.61, 54.39, 38.05, 36.54; Mass found [M - HCl + H] + = 507.2; [2M - 2
HCl + H] + = 1013.2.

(E)-2-(2-アミノ-3-(1H-インドール-3-イル)プロパンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5l)
5aと同様の合成手順で4lから5lを得た。
(E)-2-(2-amino-3-(1H-indol-3-yl)propanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5l)
5l was obtained from 4l via a similar synthetic procedure to 5a.

収率78%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.65 (d, J= 8.0 Hz, 1H), 7.55 (d, J= 8.0 Hz, 2H), 7.39 (d, J= 8.5 Hz, 1H), 7.23 (s, 1H), 7.17-7.15 (m, 3H), 7.12
(d, J = 16.5 Hz, 1H), 7.10 (d, J = 16.5 Hz, 1H), 7.06-7.03 (m, 1H), 6.70 (d, J=
2.0 Hz, 2H), 6.40 (s, 1H), 4.25-4.21 (m, 1H), 4.18-4.10 (m, 2H), 3.80 (s, 6H), 3.60-3.55 (m, 1H), 3.50-3.45 (m, 1H), 3.39 (dd, J = 6.5, 15.0 Hz, 1H), 3.25 (dd,
J = 8.0, 15.0 Hz, 1H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 169.10, 161.13, 153.54, 150.50, 139.18, 136.88, 135.47, 128.95, 127.41, 127.17, 126.91, 124.19, 121.52, 120.95, 118.88, 117.69, 111.26, 106.58, 104.22, 99.61, 66.53, 54.40, 54.38, 53.74, 38.17, 27.51; Mass found [M - HCl + H]+= 530.3; [2M - 2HCl + H]+ = 1059.4。
Yield 78%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.65 (d, J= 8.0Hz, 1H), 7.55 (d, J= 8.0Hz, 2H), 7.39 (d, J= 8.5Hz, 1H), 7.23 (s, 1H), 7.17-7.15 (m, 3H), 7.12
(d, J = 16.5 Hz, 1H), 7.10 (d, J = 16.5 Hz, 1H), 7.06-7.03 (m, 1H), 6.70 (d, J=
2.0 Hz, 2H), 6.40 (s, 1H), 4.25-4.21 (m, 1H), 4.18-4.10 (m, 2H), 3.80 (s, 6H), 3.60-3.55 (m, 1H), 3.50-3.45 (m, 1H), 3.39 (dd, J = 6.5, 15.0 Hz, 1H), 3.25 (dd,
J = 8.0, 15.0 Hz, 1H); 13 C-NMR (CD 3 OD, 125 MHz), δ(ppm): 169.10, 161.13, 153.54, 150.50, 139.18, 136.88, 135.47, 128.95, 127.41, 127.17, 126.91, 124.19, 121.52, 120.95, 118.88, 117.69, 111.26, 106.58, 104.22, 99.61, 66.53, 54.40, 54.38, 53.74, 38.17, 27.51; Mass found [M - [HCl + H] + = 530.3; [2M - 2HCl + H] + = 1059.4.

(E)-2-(2-アミノ-3-(1H-イミダゾール-2-イル)プロパンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート二塩酸塩(5m)
5aと同様の合成手順で4mから5mを得た。
(E)-2-(2-amino-3-(1H-imidazol-2-yl)propanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate dihydrochloride (5m)
5m was obtained from 4m by a similar synthetic procedure to 5a.

収率82%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 8.90 (s, 1H), 7.59 (d, J = 8.5 Hz, 2H), 7.53 (s, 1H), 7.20 (d, J = 8.5 Hz, 2H), 7.15 (d, J = 16.5 Hz, 1H), 7.08 (d, J = 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.41 (t, J= 2.0 Hz, 1H), 4.36-4.32 (m, 1H), 4.31-4.27 (m, 2H), 3.81 (s, 6H), 3.71-3.66 (m, 1H), 3.55-3.50 (m, 1H), 3.42-3.35 (m, 2H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 167.46, 161.15, 153.55, 150.48, 139.17, 135.54, 134.43, 129.00, 127.40, 127.18, 126.62, 121.05, 118.36, 104.23, 99.61, 66.58, 54.40, 51.96, 38.30, 26.20; Mass found [M - HCl + H]+= 482.2; [M - HCl + Na]+ = 504.1; [2M - 2HCl + H]+ = 962.3。 Yield: 82%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 8.90 (s, 1H), 7.59 (d, J = 8.5 Hz, 2H), 7.53 (s, 1H), 7.20 (d, J = 8.5 Hz, 2H), 7.15 (d, J = 16.5 Hz, 1H), 7.08 (d, J = 16.5 Hz, 1H), 6.71 (d, J = 2.0 Hz, 2H), 6.41 (t, J = 2.0 Hz, 1H), 4.36-4.32 (m, 1H), 4.31-4.27 (m, 2H), 3.81 (s, 6H), 3.71-3.66 (m, 1H), 3.55-3.50 (m, 1H), 3.42-3.35 (m, 2H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 167.46, 161.15, 153.55, 150.48, 139.17, 135.54, 134.43, 129.00, 127.40, 127.18, 126.62, 121.05, 118.36, 104.23, 99.61, 66.58, 54.40, 51.96, 38.30, 26.20; Mass found [M - HCl + H] + = 482.2; [M - HCl + Na] + = 504.1; [2M - 2HCl + H] + = 962.3.

(E)-2-(2,6-ジアミノヘキサンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート二塩酸塩(5n)
5aと同様の合成手順で4nから5nを得た。
(E)-2-(2,6-diaminohexanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate dihydrochloride (5n)
5n was obtained from 4n by a similar synthetic procedure to 5a.

収率78%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.60 (d, J= 8.5 Hz, 2H), 7.20 (d, J= 8.5 Hz, 2H), 7.16 (d, J= 16.5 Hz, 1H), 7.09 (d, J= 16.5 Hz, 1H), 6.72 (d, J= 2.0 Hz, 2H), 6.41 (s, 1H), 4.42-4.38 (m, 1H), 4.35-4.30 (m, 1H), 3.93 (t, J = 6.5 Hz, 1H), 3.80 (s, 6H), 3.75-3.70 (m, 1H), 3.56-3.51 (m, 1H), 2.93 (t, J = 8.0 Hz, 2H), 1.97-1.87 (m, 2H), 1.75-1.69 (m, 2H), 1.56-1.50 (m, 2H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.97, 161.15, 153.63, 150.50, 139.18, 135.54, 129.01, 127.41, 127.21, 121.03, 104.23, 99.60, 66.68, 54.42, 54.39, 52.81, 38.88, 38.17, 30.66, 26.71, 21.44; Mass found [M - 2HCl + H]+= 472.2。 Yield: 78%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.60 (d, J= 8.5Hz, 2H), 7.20 (d, J= 8.5Hz, 2H), 7.16 (d, J= 16.5Hz, 1H), 7.09 (d, J= 16.5Hz, 1H), 6.72 (d, J= 2.0Hz, 2H), 6.41 (s, 1H), 4.42-4.38 (m, 1H), 4.35-4.30 (m, 1H), 3.93 (t, J = 6.5Hz, 1H), 3.80 (s, 6H), 3.75-3.70 (m, 1H), 3.56-3.51 (m, 1H), 2.93 (t, J = 8.0 Hz, 2H), 1.97-1.87 (m, 2H), 1.75-1.69 (m, 2H), 1.56-1.50 (m, 2H); 13C -NMR ( CD3OD , 125 MHz), δ(ppm): 168.97, 161.15, 153.63, 150.50, 139.18, 135.54, 129.01, 127.41, 127.21, 121.03, 104.23, 99.60, 66.68, 54.42, 54.39, 52.81, 38.88, 38.17, 30.66, 26.71, 21.44; Mass found [M - 2HCl + H] + = 472.2.

(E)-2-(2-アミノ-5-グアニジノペンタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート二塩酸塩(5o)
5iと同様の合成手順で4oから5oを得た。
(E)-2-(2-amino-5-guanidinopentanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate dihydrochloride (5o)
5o was obtained from 4o via a similar synthetic procedure to 5i.

収率64%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 7.5 Hz, 2H), 7.19 (d, J= 7.5 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.06 (d, J= 16.5 Hz, 1H), 6.70 (s, 2H), 6.39 (s, 1H), 4.37-4.33 (m, 2H), 3.96 (s, 1H), 3.79 (s, 6H), 3.72-3.69 (m, 1H), 3.60-3.55 (m, 1H), 3.22 (s, 2H), 1.94 (s, 2H), 1.71 (s, 2H); 13C-NMR (CD3OD,
125 MHz), δ(ppm): 168.87, 161.12, 157.19, 153.70, 150.49, 139.18, 135.50, 128.98, 127.43, 127.22, 121.05, 104.24, 99.63, 66.69, 54.42, 52.64, 40.43, 38.21, 28.31, 23.92; Mass found [M - 2HCl + H]+ = 500.1。
Yield: 64%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 7.5Hz, 2H), 7.19 (d, J= 7.5Hz, 2H), 7.14 (d, J= 16.5Hz, 1H), 7.06 (d, J= 16.5Hz, 1H), 6.70 (s, 2H), 6.39 (s, 1H), 4.37-4.33 (m, 2H), 3.96 (s, 1H), 3.79 (s, 6H), 3.72-3.69 (m, 1H), 3.60-3.55 (m, 1H), 3.22 (s, 2H), 1.94 (s, 2H), 1.71 (s, 2H); 13 C-NMR (CD 3 OD,
125 MHz), δ(ppm): 168.87, 161.12, 157.19, 153.70, 150.49, 139.18, 135.50, 128.98, 127.43, 127.22, 121.05, 104.24, 99.63, 66.69, 54.42, 52.64, 40.43, 38.21, 28.31, 23.92; Mass found [M - 2HCl + H] + = 500.1.

(E)-2-(2,4-ジアミノ-4-オキソブタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5p)
5iと同様の合成手順で4pから5pを得た。
(E)-2-(2,4-diamino-4-oxobutanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5p)
5p was obtained from 4p via a similar synthetic procedure to 5i.

収率68%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.59 (d, J= 8.5 Hz, 2H), 7.19 (d, J= 8.5 Hz, 2H), 7.16 (d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.5 Hz, 2H), 6.41 (t, J= 2.5 Hz, 1H), 4.35-4.32 (m, 2H), 4.22-4.19 (m, 1H), 3.80 (s, 6H), 3.67-3.60 (m, 1H), 3.59-3.55 (m, 1H), 2.90 (dd, J = 4.5, 17.5 Hz, 1H), 2.79 (dd, J = 4.0, 17.0 Hz, 1H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 171.80, 168.41, 161.14, 153.69, 150.50, 139.18, 135.50, 128.97, 127.42, 127.19, 120.99, 104.22, 99.59, 66.65, 54.39, 49.90, 38.29, 34.82; Mass found [M - HCl + H]+ = 459.2; [M - HCl + Na]+ = 481.1; [2M - 2HCl + H]+ = 916.4。 Yield: 68%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.59 (d, J= 8.5Hz, 2H), 7.19 (d, J= 8.5Hz, 2H), 7.16 (d, J= 16.5Hz, 1H), 7.08 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.5Hz, 2H), 6.41 (t, J= 2.5Hz, 1H), 4.35-4.32 (m, 2H), 4.22-4.19 (m, 1H), 3.80 (s, 6H), 3.67-3.60 (m, 1H), 3.59-3.55 (m, 1H), 2.90 (dd, J = 4.5, 17.5 Hz, 1H), 2.79 (dd, J = 4.0, 17.0 Hz, 1H); 13 C-NMR (CD 3 OD, 125 MHz), δ(ppm): 171.80, 168.41, 161.14, 153.69, 150.50, 139.18, 135.50, 128.97, 127.42, 127.19, 120.99, 104.22, 99.59, 66.65, 54.39, 49.90, 38.29, 34.82; Mass found [M - HCl + H] + = 459.2; [M - HCl + Na] + = 481.1; [2M - 2HCl + H] + = 916.4.

(E)-2-(2,5-ジアミノ-5-オキソペンタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5q)
5iと同様の合成手順で4qから5qを得た。
(E)-2-(2,5-diamino-5-oxopentanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5q)
5q was obtained from 4q via a similar synthetic procedure to 5i.

収率62%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (s, 2H), 6.40 (s, 1H), 4.41-4.35 (m, 1H), 4.34-4.30 (m, 1H), 3.97 (t, J = 6.5 Hz, 1H), 3.80 (s, 6H), 3.72-3.68 (m, 1H), 3.58-3.53 (m, 1H), 2.50-2.47 (m, 2H), 2.16-2.09 (m, 2H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 175.66, 168.78, 161.14, 153.64, 150.50, 139.20, 135.50, 128.97, 127.45, 127.19, 121.00, 104.23, 99.64, 66.66, 54.40, 52.65, 38.21, 30.19, 26.78; Mass found [M - HCl + H]+ = 473.3; [M - HCl + Na]+= 495.3; [2M - 2HCl + H]+ = 944.6。 Yield: 62%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 8.5Hz, 2H), 7.18 (d, J= 8.5Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.08 (d, J= 16.5Hz, 1H), 6.71 (s, 2H), 6.40 (s, 1H), 4.41-4.35 (m, 1H), 4.34-4.30 (m, 1H), 3.97 (t, J = 6.5Hz, 1H), 3.80 (s, 6H), 3.72-3.68 (m, 1H), 3.58-3.53 (m, 1H), 2.50-2.47 (m, 2H), 2.16-2.09 (m, 2H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 175.66, 168.78, 161.14, 153.64, 150.50, 139.20, 135.50, 128.97, 127.45, 127.19, 121.00, 104.23, 99.64, 66.66, 54.40, 52.65, 38.21, 30.19, 26.78; Mass found [M - HCl + H] + = 473.3; [M - HCl + Na] + = 495.3; [2M - 2HCl + H] + = 944.6.

(E)-3-アミノ-4-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-4-オキソブタン酸塩酸塩(5r)
5aの合成手順と同様の方法で4rから5rを得た。
(E)-3-Amino-4-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-4-oxobutanoic acid hydrochloride (5r)
5r was obtained from 4r in a similar manner to the synthesis of 5a.

収率82%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.59 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.07 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 4.37-4.32 (m, 2H), 4.22-4.19 (m, 1H), 3.80 (s, 6H), 3.69-3.64 (m, 1H), 3.58-3.54 (m, 1H), 2.99 (dd, J = 4.0, 18.0 Hz, 1H), 2.89 (dd, J = 4.0, 18.0 Hz, 1H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 171.18, 168.13, 161.14, 153.67, 150.52, 139.19, 135.48, 128.96, 127.44, 127.18, 120.99, 104.23, 99.60, 66.54, 54.39, 49.63, 38.35, 34.60; Mass found [M - HCl + H]+ = 459.1; [2M - 2HCl + H]+ = 917.2。 Yield: 82%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.59 (d, J= 8.5Hz, 2H), 7.18 (d, J= 8.5Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.07 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 4.37-4.32 (m, 2H), 4.22-4.19 (m, 1H), 3.80 (s, 6H), 3.69-3.64 (m, 1H), 3.58-3.54 (m, 1H), 2.99 (dd, J = 4.0, 18.0 Hz, 1H), 2.89 (dd, J = 4.0, 18.0 Hz, 1H); 13 C-NMR (CD 3 OD, 125 MHz), δ(ppm): 171.18, 168.13, 161.14, 153.67, 150.52, 139.19, 135.48, 128.96, 127.44, 127.18, 120.99, 104.23, 99.60, 66.54, 54.39, 49.63, 38.35, 34.60; Mass found [M - HCl + H] + = 459.1; [2M - 2HCl + H] + = 917.2.

(E)-4-アミノ-5-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-5-オキソペンタン酸塩酸塩(5s)
5aと同様の合成手順で4sから5sを得た。
(E)-4-Amino-5-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-5-oxopentanoic acid hydrochloride (5s)
5s was obtained from 4s via a similar synthetic procedure to 5a.

収率88%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.07 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (s, 1H), 4.41-4.36 (m, 1H), 4.33-4.29 (m, 1H), 3.96 (t, J =
6.5 Hz, 1H), 3.80 (s, 6H), 3.75-3.70 (m, 1H), 3.55-3.50 (m, 1H), 2.52 (t, J = 7.5 Hz, 2H), 2.18-2.13 (m, 2H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 174.27, 168.72,
161.12, 153.64, 150.51, 139.21, 135.45, 128.93, 127.47, 127.18, 121.00, 104.23,
99.60, 66.61, 54.43, 52.44, 38.15, 28.69, 26.30; Mass found [M - HCl + H]+= 473.0。
Yield 88%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 8.5Hz, 2H), 7.18 (d, J= 8.5Hz, 2H), 7.14 (d, J= 16.5Hz, 1H), 7.07 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (s, 1H), 4.41-4.36 (m, 1H), 4.33-4.29 (m, 1H), 3.96 (t, J =
6.5 Hz, 1H), 3.80 (s, 6H), 3.75-3.70 (m, 1H), 3.55-3.50 (m, 1H), 2.52 (t, J = 7.5 Hz, 2H), 2.18-2.13 (m, 2H); 13C -NMR ( CD3OD , 125 MHz), δ(ppm): 174.27, 168.72,
161.12, 153.64, 150.51, 139.21, 135.45, 128.93, 127.47, 127.18, 121.00, 104.23,
99.60, 66.61, 54.43, 52.44, 38.15, 28.69, 26.30; Mass found [M - HCl + H] + = 473.0.

1-2-2.目的化合物5tの合成
スキーム1と同様のスキーム2に従って化合物5tを合成した。
1-2-2. Synthesis of target compound 5t Compound 5t was synthesized according to Scheme 2, which is similar to Scheme 1.

スキーム2:化合物5tの合成 Scheme 2: Synthesis of compound 5t

試薬および条件:(a)HATU,DIPEA,CHCl,41%;(b)NEt,CHCl,0℃;(c)DMAP,ACN,50℃,57%;(d)1,4-ジオキサン中4M HCl,CHCl,92%。 Reagents and conditions: (a) HATU, DIPEA, CH 2 Cl 2 , 41%; (b) NEt 3 , CH 2 Cl 2 , 0° C.; (c) DMAP, ACN, 50° C., 57%; (d) 4M HCl in 1,4-dioxane, CH 2 Cl 2 , 92%.

(E)-4-(3,5-ジメトキシスチリル)フェニル(2-(ピロリジン-2-カルボキサミド)エチル)カーボネート塩酸塩(5t)
5aと同様の合成手順で1tから5tの化合物を得た。
(E)-4-(3,5-dimethoxystyryl)phenyl(2-(pyrrolidine-2-carboxamido)ethyl)carbonate hydrochloride (5t)
Compounds 1t to 5t were obtained by the same synthetic procedure as for 5a.

白色粉末。収率92%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.07 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 4.39-4.32 (m, 2H), 4.31-4.27 (m, 1H), 3.80 (s, 6H), 3.69-3.61 (m, 1H), 3.59-3.54 (m, 1H), 3.43-3.36 (m, 1H), 3.34-3.31 (m, 1H), 2.46-2.40 (m, 1H), 2.08-2.01 (m, 3H); 13C-NMR (CD3OD, 125 MHz)
, δ(ppm): 168.66, 161.15, 153.67, 150.52, 139.18, 135.50, 128.98, 127.41, 127.18, 120.95, 104.23, 99.61, 66.62, 59.77, 54.39, 45.95, 38.46, 29.56, 23.59; Mass found [M - HCl + H]+ = 442.0; [M - HCl + Na]+= 464.1; [2M - 2HCl + H]+ = 882.4; [2M - 2HCl + Na]+ = 904.4。
White powder. Yield 92%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 9.0Hz, 2H), 7.18 (d, J= 9.0Hz, 2H), 7.14 (d, J= 16.5Hz, 1H), 7.07 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 4.39-4.32 (m, 2H), 4.31-4.27 (m, 1H), 3.80 (s, 6H), 3.69-3.61 (m, 1H), 3.59-3.54 (m, 1H), 3.43-3.36 (m, 1H), 3.34-3.31 (m, 1H), 2.46-2.40 (m, 1H), 2.08-2.01 (m, 3H); 13C -NMR ( CD3OD , 125MHz)
, δ(ppm): 168.66, 161.15, 153.67, 150.52, 139.18, 135.50, 128.98, 127.41, 127.18, 120.95, 104.23, 99.61, 66.62, 59.77, 54.39, 45.95, 38.46, 29.56, 23.59; Mass found [M - HCl + H] + = 442.0; [M - HCl + Na] + = 464.1; [2M - 2HCl + H] + = 882.4; [2M - 2HCl + Na] + = 904.4.

1-2-3.目的化合物5uの合成
スキーム1と同様のスキーム3に従って、化合物5uを合成した。
1-2-3. Synthesis of target compound 5u Compound 5u was synthesized according to Scheme 3, which is similar to Scheme 1.

スキーム3:化合物5uの合成 Scheme 3: Synthesis of compound 5u

試薬および条件:(a)EDCI,DIPEA,CHCl,45%;(b)NEt,CHCl,0℃;(c)DMAP,ACN,50℃,33%;(d)ジオキサン中4M HCl,CHCl,90%。 Reagents and conditions: (a) EDCI, DIPEA, CH2Cl2 , 45%; (b) NEt3 , CH2Cl2 , 0°C; (c) DMAP, ACN, 50°C, 33%; (d) 4M HCl in dioxane, CH2Cl2 , 90%.

(E)-3-(2-アミノ-3-メチルブタンアミド)プロピル(4-(3,5-ジメトキシスチリル)フェニル)カーボネート塩酸塩(5u)
5aと同様の合成手順で1cおよび3-アミノプロパン-1-オールから化合物5uを得た。
(E)-3-(2-amino-3-methylbutanamido)propyl(4-(3,5-dimethoxystyryl)phenyl)carbonate hydrochloride (5u)
Compound 5u was obtained from 1c and 3-aminopropan-1-ol via a similar synthetic procedure to 5a.

白色粉末。収率90%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.57 (d, J= 8.5 Hz, 2H), 7.16 (d, J= 8.5 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.06 (d, J= 16.5 Hz, 1H), 6.70 (d, J= 1.5 Hz, 2H), 6.40 (s, 1H), 4.30 (t, J = 6.5 Hz, 2H), 3.80 (s, 6H), 3.65 (d, J = 5.5 Hz, 1H), 3.47-3.41 (m, 1H), 3.39-3.34 (m, 1H), 2.21-2.17 (m, 1H), 2.00-1.95 (m, 3H), 1.06 (t, J = 7.5 Hz, 6H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.22, 161.12, 153.66, 150.56, 139.21, 135.40, 128.91, 127.46, 127.18, 120.97
, 104.23, 99.61, 65.92, 58.54, 54.40, 35.77, 30.05, 28.09, 17.51, 16.62; Mass found [M - HCl + H]+ = 457.3; [M - HCl + Na]+ = 479.2; [2M - 2HCl + Na]+ = 935.4。
White powder. Yield: 90%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.57 (d, J= 8.5Hz, 2H), 7.16 (d, J= 8.5Hz, 2H), 7.14 (d, J= 16.5Hz, 1H), 7.06 (d, J= 16.5Hz, 1H), 6.70 (d, J= 1.5Hz, 2H), 6.40 (s, 1H), 4.30 (t, J = 6.5Hz, 2H), 3.80 (s, 6H), 3.65 (d, J = 5.5Hz, 1H), 3.47-3.41 (m, 1H), 3.39-3.34 (m, 1H), 2.21-2.17 (m, 1H), 2.00-1.95 (m, 3H), 1.06 (t, J = 7.5 Hz, 6H); 13C -NMR ( CD3OD , 125 MHz), δ(ppm): 168.22, 161.12, 153.66, 150.56, 139.21, 135.40, 128.91, 127.46, 127.18, 120.97
, 104.23, 99.61, 65.92, 58.54, 54.40, 35.77, 30.05, 28.09, 17.51, 16.62; Mass found [M - HCl + H] + = 457.3; [M - HCl + Na] + = 479.2; [2M - 2HCl + Na] + = 935.4.

1-2-4.目的化合物5vおよび5wの合成
スキーム4に示すように、化合物5aまたは化合物5cを炭酸ナトリウムで中和した後、ニコチン酸で処理すると、対応するニコチン酸塩5v、ニコチン酸塩5wを得た。
1-2-4. Synthesis of Target Compounds 5v and 5w As shown in Scheme 4, compound 5a or compound 5c was neutralized with sodium carbonate and then treated with nicotinic acid to give the corresponding nicotinate salts 5v and 5w.

スキーム4:化合物5vおよび5wの合成 Scheme 4: Synthesis of compounds 5v and 5w

試薬および条件:(a)1.KCO,HO,CHCl,1時間;2.ニコチン酸,エタノール,3時間。 Reagents and conditions: (a) 1. K2CO3 , H2O , CH2Cl2 , 1 hr; 2. Nicotinic acid, ethanol, 3 hr.

(E)-2-(2-アミノアセトアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネートニコチネート(5v)
CHCl(20mL)中の化合物5a(0.42g,1.0mmol)の撹拌溶液に、HO(0.4mL)中のKCO(0.182g,1.3mmol)を加え、反応混合物を室温で1時間撹拌した。溶媒を真空下で除去して遊離アミンを得て、これを10mLのエタノールに溶解し、ニコチン酸(0.145g,1.2mmol)を添加した。反応混合物を室温で3時間撹拌した。溶媒を蒸発させ、粗生成物をエタノールおよび脱水エーテルから再結晶して、化合物5vを白色粉末として得た(0.39g,収率78%)。1H-NMR (CDCl3, 500 MHz), δ(ppm): 9.07 (s, 1H), 8.57-8.56 (m, 1H), 8.34 (t, J = 2.0 Hz, 1H), 7.59 (d, J = 8.5 Hz, 2H), 7.47-7.44 (m, 1H), 7.18-7.14 (m, 3H),
7.08 (d, J = 16.5 Hz, 1H), 6.72 (d, J = 2.5 Hz, 2H), 6.41 (t, J = 2.5 Hz, 1H), 4.33 (t, J = 5.0 Hz, 2H), 3.81 (s, 6H), 3.68-3.66 (m, 2H), 3.61 (t, J = 5.0 Hz, 2H)。
(E)-2-(2-aminoacetamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate nicotinate (5v)
To a stirred solution of compound 5a (0.42 g, 1.0 mmol) in CH 2 Cl 2 (20 mL), K 2 CO 3 (0.182 g, 1.3 mmol) in H 2 O (0.4 mL) was added, and the reaction mixture was stirred at room temperature for 1 h. The solvent was removed under vacuum to give the free amine, which was dissolved in 10 mL of ethanol, and nicotinic acid (0.145 g, 1.2 mmol) was added. The reaction mixture was stirred at room temperature for 3 h. The solvent was evaporated, and the crude product was recrystallized from ethanol and anhydrous ether to give compound 5v as a white powder (0.39 g, 78% yield). 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 9.07 (s, 1H), 8.57-8.56 (m, 1H), 8.34 (t, J = 2.0 Hz, 1H), 7.59 (d, J = 8.5 Hz, 2H), 7.47-7.44 (m, 1H), 7.18-7.14 (m, 3H),
7.08 (d, J = 16.5 Hz, 1H), 6.72 (d, J = 2.5 Hz, 2H), 6.41 (t, J = 2.5 Hz, 1H), 4.33 (t, J = 5.0 Hz, 2H), 3.81 (s, 6H), 3.68-3.66 (m, 2H), 3.61 (t, J = 5.0 Hz, 2H).

(E)-2-(2-アミノ-3-メチルブタンアミド)エチル(4-(3,5-ジメトキシスチリル)フェニル)カーボネートニコチネート(5w)
5vと同様の合成手順で5cから5wを得た。
(E)-2-(2-amino-3-methylbutanamido)ethyl(4-(3,5-dimethoxystyryl)phenyl)carbonate nicotinate (5w)
5w was obtained from 5c via a similar synthetic procedure to 5v.

白色粉末。収率79%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 9.19 (s, 1H), 8.70 (d,
J = 3.5 Hz, 1H), 8.32-8.30 (m, 1H), 7.47 (d, J = 8.5 Hz, 2H), 7.40-7.37 (m, 1H), 7.13 (d, J= 8.5 Hz, 2H), 7.03 (d, J= 16.5 Hz, 1H), 6.96 (d, J= 16.5 Hz, 1H), 6.63 (d, J= 2.5 Hz, 2H), 6.38 (t, J= 2.5 Hz, 1H), 4.33-4.28 (m, 2H), 3.80 (s, 6H), 3.67-3.62 (m, 2H), 3.56-3.53 (m, 1H), 2.20-2.05 (m, 1H), 1.02-0.90 (m, 6H)。
White powder. Yield: 79%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 9.19 (s, 1H), 8.70 (d,
J = 3.5 Hz, 1H), 8.32-8.30 (m, 1H), 7.47 (d, J = 8.5 Hz, 2H), 7.40-7.37 (m, 1H), 7.13 (d, J= 8.5 Hz, 2H), 7.03 (d, J= 16.5 Hz, 1H), 6.96 (d, J= 16.5 Hz, 1H), 6.63 (d, J= 2.5 Hz, 2H), 6.38 (t, J= 2.5 Hz, 1H), 4.33- 4.28 (m, 2H), 3.80 (s, 6H), 3.67-3.62 (m, 2H), 3.56-3.53 (m, 1H), 2.20-2.05 (m, 1H), 1.02-0.90 (m, 6H).

1-2-5.目的化合物6a~6hの合成
スキーム5に従って、化合物6a~6hを合成した。示されるように、出発物質4-ヒドロキシベンズアルデヒド(11a~11b)をイミダゾールおよびTIPSで処理して対応するシリルエーテル(12a~12b)を形成し、これをNaBHで還元して対応
するカルビノール(13a~13b)を得た。化合物13a~13bを亜リン酸トリエチルおよびZnIで処理し、対応するホスホン酸塩(14a~14b)を得た。化合物14a~14bをそれぞれ市販のアルデヒド(15a~15d)とカップリングさせて対応する16a~16dを得て、その後THF中のBuNFで処理して目的の化合物17a~17dを得た。一方、化合物2a、2cおよび2jをp-ニトロフェニルクロロホルメートと反応させて対応する18a、18cおよび18jを得て、これをさらなる精製をせずにDMAPの存在下で17a~17dと別々に反応させて、対応する炭酸塩19a~19hを得た。その後、19a~19hを1,4-ジオキサン中4M HClで脱保護し、目的化合物6a~6hを得た。
1-2-5. Synthesis of target compounds 6a-6h Compounds 6a-6h were synthesized according to Scheme 5. As shown, starting material 4-hydroxybenzaldehyde (11a-11b) was treated with imidazole and TIPS to form the corresponding silyl ether (12a-12b), which was reduced with NaBH4 to give the corresponding carbinol (13a-13b). Compounds 13a-13b were treated with triethyl phosphite and ZnI2 to give the corresponding phosphonate (14a-14b). Compounds 14a-14b were coupled with commercially available aldehydes (15a-15d), respectively, to give the corresponding 16a-16d, which were then treated with Bu4NF in THF to give the target compounds 17a-17d. Meanwhile, compounds 2a, 2c and 2j were reacted with p-nitrophenyl chloroformate to give the corresponding 18a, 18c and 18j, which were reacted separately with 17a-17d in the presence of DMAP without further purification to give the corresponding carbonates 19a-19h, which were then deprotected with 4 M HCl in 1,4-dioxane to give the target compounds 6a-6h.

スキーム5:化合物6a~6hの合成 Scheme 5: Synthesis of compounds 6a-6h

試薬および条件:(a)イミダゾール,TIPSCl,CHCl,16時間;(b)
NaBH,THF,MeOH,0℃,1時間;(c)ZnI,亜リン酸トリエチル,THF,80℃,16h;(d)t-BuOK,THF,0℃,3h;(e)THF中1
.0M BuNF,THF;(f)NEt,CHCl,0℃;(g)DMAP,ACN,50℃;(h)1,4-ジオキサン,CHCl中4M HCl,CHCl
Reagents and conditions: (a) Imidazole, TIPSCl, CH2Cl2 , 16 hours; (b)
(c) ZnI 2 , triethyl phosphite, THF, 80° C., 16 h; (d) t-BuOK, THF, 0° C., 3 h ; (e) 1 in THF
0M Bu 4 NF, THF; (f) NEt 3 , CH 2 Cl 2 , 0° C.; (g) DMAP, ACN, 50° C.; (h) 1,4-dioxane, 4M HCl in CH 2 Cl 2 , CH 2 Cl 2 .

4-((トリイソプロピルシリル)オキシ)ベンズアルデヒド(12a)
DCM(500mL)中の4-ヒドロキシベンズアルデヒド11a(50g,409.8mmol)の溶液に、イミダゾール(41.8g,614.7mmol)を加え、その後、TIPSCl(86.5g,450.8mmol)を滴下して加えた。混合物を16時間撹拌し、氷/水に注ぎ、DCMで抽出した。有機層をブラインで洗浄し,NaSOで乾燥させ,蒸発させた。残渣をシリカゲルカラムクロマトグラフィー(溶出溶媒:酢酸エチル/石油エーテル=1/50)で精製し、化合物12a(95g、99%)を黄色オイルとして得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 9.88 (s, 1H, CHO), 7.78 (dd,
J = 2.0, 8.5 Hz, 2H), 6.98 (d, J = 8.5 Hz, 2H), 1.32-1.25 (m, 3H), 1.11 (d, J= 8.0 Hz, 18H)。
4-((triisopropylsilyl)oxy)benzaldehyde (12a)
To a solution of 4-hydroxybenzaldehyde 11a (50 g, 409.8 mmol) in DCM (500 mL) was added imidazole (41.8 g, 614.7 mmol) followed by dropwise addition of TIPSCl (86.5 g, 450.8 mmol). The mixture was stirred for 16 h, poured into ice/water and extracted with DCM. The organic layer was washed with brine, dried over Na 2 SO 4 and evaporated. The residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/petroleum ether=1/50) to give compound 12a (95 g, 99%) as a yellow oil. 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 9.88 (s, 1H, CHO), 7.78 (dd,
J = 2.0, 8.5 Hz, 2H), 6.98 (d, J = 8.5 Hz, 2H), 1.32-1.25 (m, 3H), 1.11 (d, J= 8.0 Hz, 18H).

3-メトキシ-4-((トリイソプロピルシリル)オキシ)ベンズアルデヒド(12b)
12aと同様の合成手順で11bから12bを得た。
3-Methoxy-4-((triisopropylsilyl)oxy)benzaldehyde (12b)
12b was obtained from 11b via a similar synthetic procedure to 12a.

黄色オイル。収率98%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 9.83 (s, 1H, CHO), 7.39 (d, J = 1.5 Hz, 1H), 7.35 (dd, J = 1.5, 8.0 Hz, 1H), 6.98 (d, J = 8.0 Hz, 1H), 3.87 (s, 3H), 1.31-1.25 (m, 3H), 1.09 (d, J = 7.5 Hz, 18H)。 Yellow oil. Yield: 98%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 9.83 (s, 1H, CHO), 7.39 (d, J = 1.5 Hz, 1H), 7.35 (dd, J = 1.5, 8.0 Hz, 1H), 6.98 (d, J = 8.0 Hz, 1H), 3.87 (s, 3H), 1.31-1.25 (m, 3H), 1.09 (d, J = 7.5 Hz, 18H).

(4-((トリイソプロピルシリル)オキシ)フェニル)メタノール(13a)
MeOH/THF(1:1,1L)中の化合物12a(100g,359.7mmol)の溶液に、0℃でNaBH(27.3g,719.4mmol)を加え、1時間撹拌した。反応混合物を氷/水に注ぎ、DCMで抽出した。有機層をブラインで洗浄し,NaSOで乾燥させ,蒸発させた。残渣をシリカゲルカラムクロマトグラフィー(溶出溶媒:酢酸エチル/石油エーテル=1/20)で精製し、化合物13a(88g、収率99%)を黄色オイルとして得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.21 (d, J= 8.5 Hz, 2H), 6.86 (d, J= 8.5 Hz, 2H), 4.60 (d, J= 5.0 Hz, 2H), 1.29-1.22 (m, 3H), 1.10-1.06 (m, 18H)。
(4-((triisopropylsilyl)oxy)phenyl)methanol (13a)
To a solution of compound 12a (100 g, 359.7 mmol) in MeOH/THF (1:1, 1 L) was added NaBH 4 (27.3 g, 719.4 mmol) at 0° C. and stirred for 1 h. The reaction mixture was poured into ice/water and extracted with DCM. The organic layer was washed with brine, dried over Na 2 SO 4 and evaporated. The residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/petroleum ether=1/20) to give compound 13a (88 g, 99% yield) as a yellow oil. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.21 (d, J= 8.5 Hz, 2H), 6.86 (d, J= 8.5 Hz, 2H), 4.60 (d, J= 5.0 Hz, 2H), 1.29-1.22 (m, 3H), 1.10-1.06 (m, 18H).

(3-メトキシ-4-((トリイソプロピルシリル)オキシ)フェニル)メタノール(13b)
13aと同様の合成手順で12bから13bを得た。
(3-Methoxy-4-((triisopropylsilyl)oxy)phenyl)methanol (13b)
13b was obtained from 12b via a similar synthetic procedure to 13a.

黄色オイル。収率95%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 6.89 (s, 1H), 6.84 (d, J = 8.0 Hz, 1H), 6.78 (d, J = 8.0 Hz, 1H), 4.61 (s, 2H), 3.81 (s, 3H), 1.57 (s, 1H), 1.28-1.22 (m, 3H), 1.09 (d, J = 7.5 Hz, 18H)。 Yellow oil. Yield: 95%. 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 6.89 (s, 1H), 6.84 (d, J = 8.0 Hz, 1H), 6.78 (d, J = 8.0 Hz, 1H), 4.61 (s, 2H), 3.81 (s, 3H), 1.57 (s, 1H), 1.28-1.22 (m, 3H), 1.09 (d, J = 7.5 Hz, 18H).

ジエチル(4-((トリイソプロピルシリル)オキシ)ベンジル)ホスホネート(14a)
THF(850mL)中の化合物13a(85g,303.6mmol)の溶液に、ZnI(145.3g,455.4mmol)および亜リン酸トリエチル(100.8g,607.2mmol)を添加した。混合物を16時間還流させ、蒸発させた。残渣に2N NaOH(500mL)を加え、エーテルで抽出した。有機層をブラインで洗浄し,NaSOで乾燥させ,蒸発させた。残渣をシリカゲルカラムクロマトグラフィー(溶出溶媒:酢酸エチル/石油エーテル=1/30)で精製し、化合物14a(90g、収率75%)を黄色オイルとして得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.16 (dd, J= 2
.5, 8.5 Hz, 2H), 6.81 (d, J= 8.5 Hz, 2H), 4.07-4.03 (m, 4H), 3.20 (d, J = 21.0 Hz, 2H), 1.65-1.21 (m, 9H), 1.08 (d, J = 7.0 Hz, 18H)。
Diethyl (4-((triisopropylsilyl)oxy)benzyl)phosphonate (14a)
To a solution of compound 13a (85 g, 303.6 mmol) in THF (850 mL) was added ZnI 2 (145.3 g, 455.4 mmol) and triethyl phosphite (100.8 g, 607.2 mmol). The mixture was refluxed for 16 h and evaporated. The residue was added with 2N NaOH (500 mL) and extracted with ether. The organic layer was washed with brine, dried over Na 2 SO 4 , and evaporated. The residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/petroleum ether=1/30) to give compound 14a (90 g, 75% yield) as a yellow oil. 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 7.16 (dd, J= 2
.5, 8.5 Hz, 2H), 6.81 (d, J= 8.5 Hz, 2H), 4.07-4.03 (m, 4H), 3.20 (d, J = 21.0 Hz, 2H), 1.65-1.21 (m, 9H), 1.08 (d, J = 7.0 Hz, 18H).

ジエチル(3-メトキシ-4-((トリイソプロピルシリル)オキシ)ベンジル)ホスホネート(14b)
14aと同様の合成手順で13bから14bを得た。
Diethyl (3-methoxy-4-((triisopropylsilyl)oxy)benzyl)phosphonate (14b)
14b was obtained from 13b via a similar synthetic procedure to 14a.

黄色オイル。収率78%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 6.83-6.79 (m, 2H), 6.71 (d, J = 8.0 Hz, 1H), 4.17-3.90 (m, 4H), 3.79 (s, 3H), 3.07 (d, J = 21.0 Hz, 2H), 1.38-1.19 (m, 9H), 1.08-1.03 (m, 18H)。 Yellow oil. Yield 78%. 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 6.83-6.79 (m, 2H), 6.71 (d, J = 8.0 Hz, 1H), 4.17-3.90 (m, 4H), 3.79 (s, 3H), 3.07 (d, J = 21.0 Hz, 2H), 1.38-1.19 (m, 9H), 1.08-1.03 (m, 18H).

(E)-(4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェノキシ)トリイソプロピルシラン(16a)
THF(175mL)中の化合物14a(7.0g,17.5mmol)の溶液に、0℃で化合物15a(3.0g,17.5mmol)およびt-BuOK(4.1g,36.7mmol)を加え、0℃で3時間撹拌した。反応混合物を氷/水に注ぎ、EAで抽出した。有機層をブラインで洗浄し,NaSOで乾燥させ,蒸発させた。残渣をシリカゲルカラムクロマトグラフィー(溶出溶媒:酢酸エチル/n-ヘキサン=1/8)で精製し、化合物16a(5.6g、収率76%)を白色固体として得た。1H-NMR (CDCl3, 500
MHz), δ(ppm): 7.37 (d, J= 8.0 Hz, 2H), 7.03 (d, J= 16.5 Hz, 1H), 6.91-6.86 (m,
3H), 6.65 (s, 2H), 6.37 (d, J = 2.0 Hz, 1H), 1.29-1.24 (m, 3H), 1.12 (d, J= 7.5
Hz, 18 H)。
(E)-(4-(3,5-bis(methoxy-d3)styryl-d6)phenoxy)triisopropylsilane (16a)
To a solution of compound 14a (7.0 g, 17.5 mmol) in THF (175 mL) was added compound 15a (3.0 g, 17.5 mmol) and t-BuOK (4.1 g, 36.7 mmol) at 0° C. and stirred at 0° C. for 3 h. The reaction mixture was poured into ice/water and extracted with EA. The organic layer was washed with brine, dried over Na 2 SO 4 and evaporated. The residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/n-hexane=1/8) to give compound 16a (5.6 g, 76% yield) as a white solid. 1 H-NMR (CDCl 3 , 500
MHz), δ(ppm): 7.37 (d, J= 8.0 Hz, 2H), 7.03 (d, J= 16.5 Hz, 1H), 6.91-6.86 (m,
3H), 6.65 (s, 2H), 6.37 (d, J = 2.0 Hz, 1H), 1.29-1.24 (m, 3H), 1.12 (d, J= 7.5
Hz, 18 H).

(E)-(4-(3,5-ジエトキシスチリル)フェノキシ)トリイソプロピルシラン(16b)
16aと同様の合成手順で14bおよび15bから16bを得た。
(E)-(4-(3,5-diethoxystyryl)phenoxy)triisopropylsilane (16b)
Following a similar synthetic procedure to 16a, 16b was obtained from 14b and 15b.

白色粉末。収率75%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.36 (d, J= 8.5 Hz, 2H), 7.01 (d, J= 16.0 Hz, 1H), 6.88 (d, J= 16.0 Hz, 1H), 6.87 (d, J= 8.5 Hz, 2H), 6.63 (d, J= 2.0 Hz, 2H), 6.37 (t, J= 2.0 Hz, 1H), 4.05 (q, J= 7.0 Hz, 4H), 1.43 (t, J= 7.0 Hz, 6H), 1.29-1.25 (m, 3H), 1.11 (d, J = 7.5 Hz, 18H)。 White powder. Yield 75%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.36 (d, J= 8.5 Hz, 2H), 7.01 (d, J= 16.0 Hz, 1H), 6.88 (d, J= 16.0 Hz, 1H), 6.87 (d, J= 8.5 Hz, 2H), 6.63 (d, J= 2.0 Hz, 2H), 6.37 (t, J= 2.0 Hz, 1H), 4.05 (q, J= 7.0 Hz, 4H), 1.43 (t, J= 7.0 Hz, 6H), 1.29-1.25 (m, 3H), 1.11 (d, J = 7.5 Hz, 18H).

(E)-(4-(3,5-ジメトキシスチリル)-2-メトキシフェノキシ)トリイソプロピルシラン(16c)
16aと同様の合成手順で14cおよび15cから16cを得た。
(E)-(4-(3,5-dimethoxystyryl)-2-methoxyphenoxy)triisopropylsilane (16c)
Following a similar synthetic procedure to 16a, 16c was obtained from 14c and 15c.

白色固体。収率78%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.03-7.00 (m, 2H), 6.96 (d, J = 8.0 Hz, 1H), 6.91 (s, 1H), 6.88-6.85 (m, 1H), 6.65 (s, 2H), 6.38 (s, 1H), 3.87 (s, 3H), 3.83 (s, 6H), 1.30-1.23 (m, 3H), 1.11 (d, J = 7.5 Hz, 18H)。 White solid. Yield: 78%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.03-7.00 (m, 2H), 6.96 (d, J = 8.0 Hz, 1H), 6.91 (s, 1H), 6.88-6.85 (m , 1H), 6.65 (s, 2H), 6.38 (s, 1H), 3.87 (s, 3H), 3.83 (s, 6H), 1.30-1.23 (m, 3H), 1.11 (d, J = 7.5 Hz, 18H).

(E)-(4-(3,5-ジメトキシスチリル)-2-メトキシフェノキシ)トリイソプロピルシラン(16d)
16aと同様の合成手順で14dおよび15dから16dを得た。
(E)-(4-(3,5-dimethoxystyryl)-2-methoxyphenoxy)triisopropylsilane (16d)
Following a similar synthetic procedure to 16a, 16d was obtained from 14d and 15d.

淡黄色固体。収率77%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.30 (d, J= 9.0 Hz, 2H), 6.91 (dd, J= 10.5, 16.5 Hz, 1H), 6.84 (d, J = 9.0 Hz, 2H), 6.81 (dd, J = 10.5, 16.5 Hz, 1H), 6.62 (d, J = 16.5 Hz, 1H), 6.59 (d, J = 2.0 Hz, 2H), 6.55 (d, J = 16.5 Hz, 1H), 6.36 (t, J= 2.0 Hz, 1H), 3.81 (s, 6H), 1.30-1.22 (m, 3H), 1.11
(d, J = 7.5 Hz, 18H)。
Pale yellow solid. Yield 77%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.30 (d, J= 9.0 Hz, 2H), 6.91 (dd, J= 10.5, 16.5 Hz, 1H), 6.84 (d, J = 9.0 Hz, 2H), 6.81 (dd, J = 10.5, 16.5 Hz, 1H), 6.62 (d, J = 16.5 Hz, 1H), 6.59 (d, J = 2.0 Hz, 2H), 6.55 (d, J = 16.5 Hz, 1H), 6.36 (t, J= 2.0 Hz, 1H), 3.81 (s, 6H), 1.30-1.22 (m, 3H), 1.11
(d, J = 7.5 Hz, 18H).

(E)-4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェノール(17a)
脱水THF(15mL)中の化合物16a(0.80g,1.9mmol)の溶液と、テトラブチルアンモニウムフロライド(THF中1.0M,2.50mL,2.5mmol)とをN雰囲気下で室温で2時間撹拌した。反応混合物をEtOAcで希釈し、有機層を水で洗浄した。有機層をNaSO上で乾燥させて蒸発させ、残渣をシリカゲルカラムクロマトグラフィー(溶出溶媒:酢酸エチル/n-ヘキサン=1/8)で精製して、生成物17a(0.46g,収率91%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.39 (d, J= 8.5 Hz, 2H), 7.03 (d, J= 16.5 Hz, 1H), 6.92-6.82 (m, 3H), 6.65 (d, J = 2.5 Hz, 2H), 6.38 (t, J = 2.5 Hz, 1H)。
(E)-4-(3,5-bis(methoxy-d3)styryl-d6)phenol (17a)
A solution of compound 16a (0.80 g, 1.9 mmol) in dry THF (15 mL) and tetrabutylammonium fluoride (1.0 M in THF, 2.50 mL, 2.5 mmol) was stirred at room temperature under N2 atmosphere for 2 h. The reaction mixture was diluted with EtOAc, and the organic layer was washed with water. The organic layer was dried over Na2SO4 and evaporated, and the residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/n-hexane=1/8) to give product 17a (0.46 g, yield 91%) as a white powder. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.39 (d, J= 8.5 Hz, 2H), 7.03 (d, J= 16.5 Hz, 1H), 6.92-6.82 (m, 3H), 6.65 (d, J = 2.5 Hz, 2H), 6.38 (t, J = 2.5 Hz, 1H).

(E)-4-(3,5-ジエトキシスチリル)フェノール(17b)
17aと同様の合成手順で16bから17bを得た。
(E)-4-(3,5-diethoxystyryl)phenol (17b)
17b was obtained from 16b via a similar synthetic procedure to 17a.

白色粉末。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.38 (d, J= 8.5 Hz, 2H), 7.01 (d, J= 16.0 Hz, 1H), 6.89-6.81 (m, 3H), 6.63 (d, J = 2.5 Hz, 2H), 6.37 (t, J = 2.5 Hz, 1H), 4.08-4.04 (m, 4H), 1.42 (t, J = 7.5 Hz, 6H)。 White powder. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.38 (d, J= 8.5 Hz, 2H), 7.01 (d, J= 16.0 Hz, 1H), 6.89-6.81 (m, 3H), 6.63 (d, J = 2.5 Hz, 2H), 6.37 (t, J = 2.5 Hz, 1H), 4.08-4.04 (m, 4H), 1.42 (t, J = 7.5 Hz, 6H).

(E)-4-(3,5-ジメトキシスチリル)-2-メトキシフェノール(17c)
17aと同様の合成手順で16cから17cを得た。
(E)-4-(3,5-dimethoxystyryl)-2-methoxyphenol (17c)
17c was obtained from 16c via a similar synthetic procedure to 17a.

白色粉末。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.04-7.00 (m, 3H), 6.92-6.87 (m, 2H), 6.66 (s, 2H), 6.39 (s, 1H), 5.68 (brs, 1H, OH), 3.96 (s, 3H), 3.83 (s, 6H)。 White powder. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.04-7.00 (m, 3H), 6.92-6.87 (m, 2H), 6.66 (s, 2H), 6.39 (s, 1H), 5.68 (brs, 1H, OH), 3.96 (s, 3H), 3.83 (s, 6H).

4-((1E,3E)-4-(3,5-ジメトキシフェニル)ブタ-1,3-ジエン-1-イル)フェノール(17d)
17aと同様の合成手順で16dから17dを得た。
4-((1E,3E)-4-(3,5-dimethoxyphenyl)buta-1,3-dien-1-yl)phenol (17d)
17d was obtained from 16d by a similar synthetic procedure to 17a.

白色粉末。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.33 (d, J= 8.0 Hz, 2H), 6.91 (dd,
J= 10.0, 15.5 Hz, 1H), 6.83-6.78 (m, 3H), 6.62 (d, J = 15.5 Hz, 1H), 6.59 (d, J
= 2.0 Hz, 2H), 6.55 (d, J = 15.5 Hz, 1H), 6.37 (t, J = 2.0 Hz, 1H), 4.94 (brs, 1H, OH), 3.82 (s, 6H)。
White powder. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.33 (d, J= 8.0 Hz, 2H), 6.91 (dd,
J = 10.0, 15.5 Hz, 1H), 6.83-6.78 (m, 3H), 6.62 (d, J = 15.5 Hz, 1H), 6.59 (d, J
= 2.0 Hz, 2H), 6.55 (d, J = 15.5 Hz, 1H), 6.37 (t, J = 2.0 Hz, 1H), 4.94 (brs, 1H, OH), 3.82 (s, 6H).

tert-ブチル(E)-(2-((2-(((4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェノキシ)カルボニル)オキシ)エチル)アミノ)-2-オキソエチル)カルバメート(19a)
脱水CHCl(15ml)中の化合物2a(1.12g,5.1mmol)の撹拌溶液にトリエチルアミン(2.15mL,15.4mmol)を加え、次に4-ニトロフェニルクロロホルメート溶液(1.15g,5.7mmol、10mL CHCl中)を0℃で滴下して添加した。反応混合物を0℃で15分間撹拌し、室温に温めた。混合物を室温でさらに4時間撹拌した。反応終了後(TLCで確認)、溶媒を蒸発させて除去した。粗中間体をACN(30ml)中のプテロスチルベン誘導体17a(1.41g,5.4mmol)およびDMAP(1.26g,10.3mmol)と混合した。得られた混合物を50℃で1時間加熱した。反応後、溶媒を真空下で除去して粗残渣を得て、これをカラムクロマトグラフィー(EA/n-ヘキサン=1/5(V/V))で精製して粗生成物を得た。粗生成物を分取HPLC(70%ACN,30%HO)で精製し、目的化合物19a(0.99g,収率38%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.52 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5
Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.53 (brs, NH), 6.40 (t, J = 2.0 Hz, 1H), 5.12 (brs, NH), 4.35 (t, J = 5.5 Hz, 2H), 3.83 (d, J = 5.
5 Hz, 2H), 3.66 (q, J = 5.5 Hz, 2H), 1.46 (s, 9H). Mass found [M - Boc + H]+= 408.3; [M + H]+ = 508.4; [M + Na]+ = 530.4, [2M + H]+= 914.6。
tert-Butyl (E)-(2-((2-(((4-(3,5-bis(methoxy-d3)styryl-d6)phenoxy)carbonyl)oxy)ethyl)amino)-2-oxoethyl)carbamate (19a)
To a stirred solution of compound 2a (1.12 g, 5.1 mmol) in dry CH 2 Cl 2 (15 ml) was added triethylamine (2.15 mL, 15.4 mmol), followed by dropwise addition of 4-nitrophenyl chloroformate solution (1.15 g, 5.7 mmol, in 10 mL CH 2 Cl 2 ) at 0° C. The reaction mixture was stirred at 0° C. for 15 min and warmed to room temperature. The mixture was stirred at room temperature for another 4 h. After completion of the reaction (checked by TLC), the solvent was removed by evaporation. The crude intermediate was mixed with pterostilbene derivative 17a (1.41 g, 5.4 mmol) and DMAP (1.26 g, 10.3 mmol) in ACN (30 ml). The resulting mixture was heated at 50° C. for 1 h. After the reaction, the solvent was removed under vacuum to give a crude residue, which was purified by column chromatography (EA/n-hexane=1/5 (V/V)) to give the crude product. The crude product was purified by preparative HPLC (70% ACN, 30% H 2 O) to give the target compound 19a (0.99 g, 38% yield) as a white powder. 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 7.52 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5
Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.53 (brs, NH), 6.40 (t, J = 2.0 Hz, 1H), 5.12 (brs, NH), 4.35 (t, J = 5.5 Hz, 2H), 3.83 (d, J = 5.
5 Hz, 2H), 3.66 (q, J = 5.5 Hz, 2H), 1.46 (s, 9H). Mass found [M - Boc + H] + = 408.3; [M + H] + = 508.4; [M + Na] + = 530.4, [2M + H] + = 914.6.

tert-ブチル(E)-(2-((2-(((4-(3,5-ジエトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-2-オキソエチル)カルバメート(19b)
19aと同様の合成手順で2aおよび17bから19bを得た。
tert-Butyl (E)-(2-((2-(((4-(3,5-diethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-2-oxoethyl)carbamate (19b)
19b was obtained from 2a and 17b via a similar synthetic procedure to 19a.

白色粉末。収率45%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.50 (d, J= 9.0 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.05 (d, J= 16.5 Hz, 1H), 6.97 (d, J= 16.5 Hz, 1H), 6.64 (d, J= 2.0 Hz, 2H), 6.53 (brs, NH), 6.40 (t, J = 2.0 Hz, 1H), 5.12 (brs, NH), 4.35 (t, J = 5.5 Hz, 2H), 4.06 (q, J = 7.0 Hz, 4H), 3.83 (d, J = 5.5 Hz, 2H),
3.66 (q, J= 5.5 Hz, 2H), 1.46 (s, 9H), 1.43 (t, J = 7.0 Hz, 6H). Mass found [M - Boc + H]+ = 430.3; [M + H]+ = 530.3; [M + Na]+= 552.2, [2M + H]+ = 1058.6, [2M
+ Na]+= 1080.6。
White powder. Yield: 45%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.50 (d, J= 9.0 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.05 (d, J= 16.5 Hz, 1H), 6.97 (d, J= 16.5 Hz, 1H), 6.64 (d, J= 2.0 Hz, 2H), 6.53 (brs, NH), 6.40 (t, J = 2.0 Hz, 1H), 5.12 (brs, NH), 4.35 (t, J = 5.5 Hz, 2H), 4.06 (q, J = 7.0 Hz, 4H), 3.83 (d, J = 5.5 Hz, 2H),
3.66 (q, J= 5.5 Hz, 2H), 1.46 (s, 9H), 1.43 (t, J = 7.0 Hz, 6H). Mass found [M - Boc + H] + = 430.3; [M + H] + = 530.3; [M + Na] + = 552.2, [2M + H] + = 1058.6, [2M
+ Na] + = 1080.6.

tert-ブチル(E)-(1-((2-(((4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェノキシ)カルボニル)オキシ)エチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(19c)
19aと同様の合成手順で2cおよび17aから19cを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-bis(methoxy-d3)styryl-d6)phenoxy)carbonyl)oxy)ethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (19c)
Following a similar synthetic procedure to 19a, 19c was obtained from 2c and 17a.

白色粉末。収率42%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.52 (d, J= 9.0 Hz, 2H), 7.18 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 6.39 (brs, NH), 5.03 (brs, NH), 4.34 (t, J = 5.5 Hz, 2H), 3.93-3.91 (m, 1H), 3.70-3.61 (m, 2H), 2.17-2.16 (m, 1H), 1.44 (s, 9H), 0.98 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H). Mass found [M - Boc + H]+ = 450.2; [M + H]+= 550.4; [M + Na]+ = 572.4。 White powder. Yield 42%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.52 (d, J= 9.0Hz, 2H), 7.18 (d, J= 9.0Hz, 2H), 7.06 (d, J= 16.5Hz, 1H), 6.99 (d, J= 16.5Hz, 1H), 6.66 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 6.39 (brs, NH), 5.03 (brs, NH), 4.34 (t, J = 5.5Hz, 2H), 3.93-3.91 (m, 1H), 3.70-3.61 (m, 2H), 2.17-2.16 (m, 1H), 1.44 (s, 9H), 0.98 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H). Mass found [M - Boc + H] + = 450.2; [M + H] + = 550.4; [M + Na] + = 572.4.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジエトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(19d)
19aと同様の合成手順で2cおよび17bから19dを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-diethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (19d)
A similar synthetic procedure to 19a was used to obtain 19d from 2c and 17b.

白色粉末。収率41%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.50 (d, J= 9.0 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.05 (d, J= 16.0 Hz, 1H), 6.97 (d, J= 16.0 Hz, 1H), 6.64 (d, J= 2.0 Hz, 2H), 6.39 (t, J= 2.0 Hz, 1H), 6.38 (brs, NH), 5.03 (brs, NH), 4.34 (t, J = 5.5 Hz, 2H), 4.05 (q, J = 7.0 Hz, 4H), 3.93-3.90 (m, 1H), 3.70-3.61 (m, 2H), 2.19-2.16 (m, 1H), 1.45 (s, 9H), 1.43 (t, J = 7.0 Hz, 6H), 0.98 (d, J = 7.0 Hz, 3H), 0.93 (d, J= 7.0 Hz, 3H). Mass found [M - Boc + H]+ = 472.3; [M + H]+ = 572.4; [M + Na]+= 594.4; [2M + H]+ = 1142.8; [2M + Na]+ = 1164.9。 White powder. Yield 41%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.50 (d, J= 9.0 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.05 (d, J= 16.0 Hz, 1H), 6.97 (d, J= 16.0 Hz, 1H), 6.64 (d, J= 2.0 Hz, 2H), 6.39 (t, J= 2.0 Hz, 1H), 6.38 (brs, NH), 5.03 (brs, NH), 4.34 (t, J = 5.5 Hz, 2H), 4.05 (q, J = 7.0 Hz, 4H), 3.93-3.90 (m, 1H), 3.70-3.61 (m, 2H), 2.19-2.16 (m, 1H), 1.45 (s, 9H), 1.43 (t, J = 7.0 Hz, 6H), 0.98 (d, J = 7.0 Hz, 3H), 0.93 (d, J= 7.0 Hz, 3H). Mass found [M - Boc + H] + = 472.3; [M + H] + = 572.4; [M + Na] + = 594.4; [2M + H] + = 1142.8; [2M + Na] + = 1164.9.

tert-ブチル(E)-(1-((2-(((4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソ-3-フェニルプロパン-2-イル)カルバメート(19e)
19aと同様の合成手順で2jおよび17aから19eを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-bis(methoxy-d3)styryl-d6)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (19e)
A similar synthetic procedure to 19a was used to obtain 19e from 2j and 17a.

白色粉末。収率47%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.52 (d, J= 9.0 Hz, 2H), 7.33-7.30 (m, 2H), 7.25-7.21 (m, 3H), 7.17 (d, J = 9.0 Hz, 2H), 7.07 (d, J = 16.5 Hz, 1H), 6.99 (d, J = 16.5 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 6.16 (brs, NH), 5.04 (brs, NH), 4.34-4.33 (m, 1H), 4.26-4.22 (m, 1H),
4.17-4.16 (m, 1H), 3.56-3.54 (m, 2H), 3.13-3.09 (m, 1H), 3.07-3.02 (m, 1H), 1.42 (s, 9H). Mass found [M - Boc + H]+= 498.3; [M + Na]+ = 620.4; [2M + H]+ = 1194.9; [2M + Na]+= 1216.9。
White powder. Yield 47%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.52 (d, J= 9.0Hz, 2H), 7.33-7.30 (m, 2H), 7.25-7.21 (m, 3H), 7.17 (d, J = 9.0Hz, 2H), 7.07 (d, J = 16.5Hz, 1H), 6.99 (d, J = 16.5Hz, 1H), 6.66 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 6.16 (brs, NH), 5.04 (brs, NH), 4.34-4.33 (m, 1H), 4.26-4.22 (m, 1H),
4.17-4.16 (m, 1H), 3.56-3.54 (m, 2H), 3.13-3.09 (m, 1H), 3.07-3.02 (m, 1H), 1.42 (s, 9H). Mass found [M - Boc + H] + = 498.3; [M + Na] + = 620.4; [2M + H] + = 1194.9; [2M + Na] + = 1216.9.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジエトキシスチリル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-1-オキソ-3-フェニルプロパン-2-イル)カルバメート(19f)
19aと同様の合成手順で2jおよび17bから19fを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-diethoxystyryl)phenoxy)carbonyl)oxy)ethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (19f)
Following a similar synthetic procedure to 19a, 19f was obtained from 2j and 17b.

白色粉末。収率47%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.51 (d, J= 9.0 Hz, 2H), 7.33-7.30 (m, 2H), 7.25-7.21 (m, 3H), 7.16 (d, J = 9.0 Hz, 2H), 7.05 (d, J = 16.0 Hz, 1H), 6.97 (d, J = 16.0 Hz, 1H), 6.64 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 6.15 (brs, NH), 5.04 (brs, NH), 4.33-4.32 (m, 1H), 4.26-4.22 (m, 1H),
4.17-4.16 (m, 1H), 4.06 (q, J = 7.0 Hz, 4H), 3.59-3.51 (m, 2H), 3.13-3.09 (m, 1H), 3.07-3.02 (m, 1H), 1.44-1.42 (m, 15H). Mass found [M - Boc + H]+= 519.2; [M + H]+ = 619.2; [M + Na]+= 641.2; [2M + Na]+ = 1259.5。
White powder. Yield 47%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.51 (d, J= 9.0Hz, 2H), 7.33-7.30 (m, 2H), 7.25-7.21 (m, 3H), 7.16 (d, J = 9.0Hz, 2H), 7.05 (d, J = 16.0Hz, 1H), 6.97 (d, J = 16.0Hz, 1H), 6.64 (d, J= 2.0Hz, 2H), 6.40 (t, J= 2.0Hz, 1H), 6.15 (brs, NH), 5.04 (brs, NH), 4.33-4.32 (m, 1H), 4.26-4.22 (m, 1H),
4.17-4.16 (m, 1H), 4.06 (q, J = 7.0 Hz, 4H), 3.59-3.51 (m, 2H), 3.13-3.09 (m, 1H), 3.07-3.02 (m, 1H), 1.44-1.42 (m, 15H). Mass found [M - Boc + H] + = 519.2; [M + H] + = 619.2; [M + Na] + = 641.2; [2M + Na] + = 1259.5.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)-2-メトキシフェノキシ)カルボニル)オキシ)エチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(19g)
19aと同様の合成手順で2cおよび17cから19gを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)-2-methoxyphenoxy)carbonyl)oxy)ethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (19 g)
The synthesis of 19g was obtained from 2c and 17c by a similar procedure to that of 19a.

白色粉末。収率37%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.11-7.08 (m, 3H), 7.05 (d, J = 16.0 Hz, 1H), 6.98 (d, J = 16.0 Hz, 1H), 6.67 (s, 2H), 6.41 (s, 1H), 6.37 (brs, NH), 5.04 (brs, NH), 4.34 (t, J = 5.5 Hz, 2H), 3.98-3.92 (m, 4H), 3.84
(s, 6H), 3.69-3.65 (m, 2H), 2.17-2.16 (m, 1H), 1.45 (s, 9H), 0.97 (d, J = 7.0 Hz, 3H), 0.92 (d, J = 7.0 Hz, 3H). Mass found [M - Boc + H]+ = 474.3; [M + H]+= 574.4; [M + Na]+ = 596.4。
White powder. Yield: 37%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.11-7.08 (m, 3H), 7.05 (d, J = 16.0Hz, 1H), 6.98 (d, J = 16.0Hz, 1H), 6.67 (s, 2H), 6.41 (s, 1H), 6.37 (brs, NH), 5.04 (brs, NH), 4.34 (t, J = 5.5 Hz, 2H), 3.98-3.92 (m, 4H), 3.84
(s, 6H), 3.69-3.65 (m, 2H), 2.17-2.16 (m, 1H), 1.45 (s, 9H), 0.97 (d, J = 7.0 Hz, 3H), 0.92 (d, J = 7.0 Hz, 3H). Mass found [M - Boc + H] + = 474.3; [M + H] + = 574.4; [M + Na] + = 596.4.

tert-ブチル(1-((2-(((4-((1E,3E)-4-(3,5-ジメトキシフェニル)ブタ-1,3-ジエン-1-イル)フェノキシ)カルボニル)オキシ)エチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(19h)
19aと同様の合成手順で2cおよび17dから19hを得た。
tert-Butyl (1-((2-(((4-((1E,3E)-4-(3,5-dimethoxyphenyl)buta-1,3-dien-1-yl)phenoxy)carbonyl)oxy)ethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (19h)
Following a similar synthetic procedure to 19a, 19h was obtained from 2c and 17d.

白色粉末。収率35%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.45 (d, J= 9.0 Hz, 2H), 7.15 (d, J= 9.0 Hz, 2H), 6.95-6.86 (m, 2H), 6.67 (d, J = 16.5 Hz, 1H), 6.63 (d, J = 16.5 Hz, 1H), 6.60 (d, J = 2.0 Hz, 2H), 6.38 (t, J = 2.0 Hz, 1H), 6.37 (brs, NH), 5.03 (brs, NH), 4.33 (t, J = 5.5 Hz, 2H), 3.93-3.90 (m, 1H), 3.83 (s, 6H), 3.70-3.61 (m, 2H), 2.18-2.16 (m, 1H), 1.45 (s, 9H), 0.98 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H). Mass found [M - Boc + H]+ = 470.0; [M + H]+= 570.3; [M + Na]+ = 592.3。 White powder. Yield 35%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.45 (d, J= 9.0Hz, 2H), 7.15 (d, J= 9.0Hz, 2H), 6.95-6.86 (m, 2H), 6.67 (d, J = 16.5Hz, 1H), 6.63 (d, J = 16.5Hz, 1H), 6.60 (d, J = 2.0Hz, 2H), 6.38 (t, J = 2.0Hz, 1H), 6.37 (brs, NH), 5.03 (brs, NH), 4.33 (t, J = 5.5Hz, 2H), 3.93-3.90 (m, 1H), 3.83 (s, 6H), 3.70-3.61 (m, 2H), 2.18-2.16 (m, 1H), 1.45 (s, 9H), 0.98 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H). Mass found [M - Boc + H] + = 470.0; [M + H] + = 570.3; [M + Na] + = 592.3.

(E)-2-(2-アミノアセトアミド)エチル(4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェニル)カーボネート塩酸塩(6a)
DCM(20mL)中の化合物19a(639mg,1.3mmol)の撹拌溶液に1,4-ジオキサン(6.3mL)中の4M HClを加え、室温で3時間撹拌した。その後、反応溶液を蒸発させ、分取HPLC精製(バッファーとしてTFA、詳細なグラジエント溶出は下記情報を参照のこと)に供した。その後、水性画分を濃塩酸数滴で処理し、凍結乾燥して化合物6a(491mg,収率92%)を白色固体として得た。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.15 (
d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.5 Hz, 2H), 6.40 (t, J= 2.5 Hz, 1H), 4.34 (t, J= 5.5 Hz, 2H), 3.71 (s, 2H), 3.62 (t, J = 5.5 Hz, 2H);
13C-NMR (CD3OD, 125 MHz), δ(ppm): 166.23, 161.14, 153.66, 150.50, 139.18, 135.49, 128.98, 127.40, 127.18, 120.95, 104.18, 99.58, 66.72, 40.06, 38.13; Mass found [M - HCl + H]+ = 408.3; [M - HCl + Na]+= 430.2; [2M - 2HCl + H]+ = 814.5; [2M
-2HCl + Na]+ = 836.5。
(E)-2-(2-aminoacetamido)ethyl (4-(3,5-bis(methoxy-d3)styryl-d6)phenyl)carbonate hydrochloride (6a)
To a stirred solution of compound 19a (639 mg, 1.3 mmol) in DCM (20 mL) was added 4M HCl in 1,4-dioxane (6.3 mL) and stirred at room temperature for 3 h. The reaction solution was then evaporated and subjected to preparative HPLC purification (TFA as buffer, detailed gradient elution see information below). The aqueous fraction was then treated with a few drops of concentrated hydrochloric acid and lyophilized to give compound 6a (491 mg, 92% yield) as a white solid. 1 H-NMR (CD 3 OD, 500 MHz), δ(ppm): 7.58 (d, J= 8.5 Hz, 2H), 7.18 (d, J= 8.5 Hz, 2H), 7.15 (
d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.5 Hz, 2H), 6.40 (t, J= 2.5 Hz, 1H), 4.34 (t, J= 5.5 Hz, 2H), 3.71 (s, 2H), 3.62 (t, J = 5.5 Hz, 2H);
13C -NMR (CD3OD , 125MHz), δ(ppm): 166.23, 161.14, 153.66, 150.50, 139.18, 135.49, 128.98, 127.40, 127.18, 120.95, 104.18, 99.58, 66.72, 40.06, 38.13; Mass found [M - HCl + H] + = 408.3; [M - HCl + Na] + = 430.2; [2M - 2HCl + H] + = 814.5; [2M
-2HCl + Na] + = 836.5.

カラム:Inertsil ODS-3 C18,5um,30*250mm
流量:38ml/分
溶媒A:HO中10%ACN+0.1%TFA
溶媒B:HO中90%ACN+0.1%TFA
グラジエント:
Column: Inertsil ODS-3 C18, 5um, 30*250mm
Flow rate: 38 ml/min Solvent A: 10% ACN + 0.1% TFA in H2O
Solvent B: 90% ACN + 0.1% TFA in H2O
Gradient:

最終化合物6b~6hは、前記6aに記載した実験手順で調製したが、いくつかの重要ではない変更を加えた。 Final compounds 6b-6h were prepared using the experimental procedure described in 6a above, with some minor modifications.

(E)-2-(2-アミノアセトアミド)エチル(4-(3,5-ジエトキシスチリル)フェニル)カーボネート塩酸塩(6b)
6aと同様の合成手順で19bから6bを得た。
(E)-2-(2-aminoacetamido)ethyl(4-(3,5-diethoxystyryl)phenyl)carbonate hydrochloride (6b)
Following a similar synthetic procedure to 6a, 19b gave 6b.

白色粉末。収率95%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 9.0 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.13 (d, J= 16.5 Hz, 1H), 7.07 (d, J= 16.5 Hz, 1H), 6.69 (d, J= 2.5 Hz, 2H), 6.38 (t, J= 2.5 Hz, 1H), 4.34 (t, J= 5.5 Hz, 2H), 4.06-4.02 (m, 4H), 3.71 (s, 2H), 3.62 (t, J = 5.5 Hz, 2H), 1.39 (t, J = 7.0 Hz, 6H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 166.24, 160.36, 153.66, 150.48, 139.09, 135.51, 129.06, 127.27, 127.16, 120.93, 104.74, 100.71, 66.72, 63.15, 40.08, 38.14, 13.77; Mass found [M - HCl + H]+= 430.3; [M - HCl + Na]+ = 452.2; [2M - 2HCl + H]+
= 858.5; [2M - 2HCl + Na]+ = 880.5。
White powder. Yield 95%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 9.0Hz, 2H), 7.17 (d, J= 9.0Hz, 2H), 7.13 (d, J= 16.5Hz, 1H), 7.07 (d, J= 16.5Hz, 1H), 6.69 (d, J= 2.5Hz, 2H), 6.38 (t, J= 2.5Hz, 1H), 4.34 (t, J= 5.5Hz, 2H), 4.06-4.02 (m, 4H), 3.71 (s, 2H), 3.62 (t, J = 5.5Hz, 2H), 1.39 (t, J = 7.0Hz, 6H); 13C -NMR (CD 3 OD, 125 MHz), δ(ppm): 166.24, 160.36, 153.66, 150.48, 139.09, 135.51, 129.06, 127.27, 127.16, 120.93, 104.74, 100.71, 66.72, 63.15, 40.08, 38.14, 13.77; Mass found [M - HCl + H] + = 430.3; [M - HCl + Na] + = 452.2; [2M - 2HCl + H] +
= 858.5; [2M - 2HCl + Na] + = 880.5.

(E)-2-(2-アミノ-3-メチルブタンアミド)エチル 4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェニル)カーボネート塩酸塩(6c)
6aと同様の合成手順で19cから6cを得た。
(E)-2-(2-amino-3-methylbutanamido)ethyl 4-(3,5-bis(methoxy-d3)styryl-d6)phenyl)carbonate hydrochloride (6c)
Following a similar synthetic procedure to 6a, 6c was obtained from 19c.

白色固体。収率89%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 9.0 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.08 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.5 Hz, 2H), 6.40 (t, J= 2.5 Hz, 1H), 4.40-4.32 (m, 1H), 4.31-4.29 (m, 1H), 3.73-3.72 (m, 1H), 3.67 (d, J = 6.0 Hz, 1H), 3.54-3.49 (m, 1H), 2.22-2.16 (m, 1H), 1.08 (t, J = 6.5 Hz, 6H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.45,
161.14, 153.58, 150.50, 139.18, 135.50, 128.98, 127.40, 127.17, 120.93, 104.19, 99.58, 66.62, 58.46, 38.04, 30.09, 17.37, 16.60; Mass found [M - HCl + H]+ = 449.3; [M - HCl + Na]+ = 471.3; [2M - 2HCl + Na]+= 919.4。
White solid. Yield 89%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 9.0Hz, 2H), 7.17 (d, J= 9.0Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.08 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.5Hz, 2H), 6.40 (t, J= 2.5Hz, 1H), 4.40-4.32 (m, 1H), 4.31-4.29 (m, 1H), 3.73-3.72 (m, 1H), 3.67 (d, J = 6.0Hz, 1H), 3.54-3.49 (m, 1H), 2.22-2.16 (m, 1H), 1.08 (t, J = 6.5 Hz, 6H); 13C -NMR ( CD3OD , 125 MHz), δ(ppm): 168.45,
161.14, 153.58, 150.50, 139.18, 135.50, 128.98, 127.40, 127.17, 120.93, 104.19, 99.58, 66.62, 58.46, 38.04, 30.09, 17.37, 16.60; Mass found [M - HCl + H] + = 449.3; [M - HCl + Na] + = 471.3; [2M - 2HCl + Na] + = 919.4.

(E)-2-(2-アミノ-3-メチルブタンアミド)エチル(4-(3,5-ジエトキシスチリル)フェニル)カーボネート塩酸塩(6d)
6aと同様の合成手順で19dから6dを得た。
(E)-2-(2-amino-3-methylbutanamido)ethyl(4-(3,5-diethoxystyryl)phenyl)carbonate hydrochloride (6d)
Following a similar synthetic procedure to 6a, 6d was obtained from 19d.

白色固体。収率93%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.58 (d, J= 9.0 Hz, 2H), 7.17 (d, J= 9.0 Hz, 2H), 7.13 (d, J= 16.0 Hz, 1H), 7.06 (d, J= 16.0 Hz, 1H), 6.69 (d, J= 2.0 Hz, 2H), 6.38 (t, J= 2.0 Hz, 1H), 4.40-4.34 (m, 1H), 4.33-4.30 (m, 1H), 4.06-4.02 (m, 4H), 3.77-3.72 (m, 1H), 3.66 (d, J= 6.0 Hz, 1H), 3.54-3.49
(m, 1H), 2.23-2.16 (m, 1H), 1.39 (t, J = 7.0 Hz, 6H), 1.08 (t, J = 7.0 Hz, 6H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.48, 160.36, 153.58, 150.47, 139.10, 135.52, 129.06, 127.28, 127.16, 120.93, 104.77, 100.73, 66.62, 63.16, 58.48, 38.05, 30.10, 17.37, 16.62, 13.78; Mass found [M - HCl + H]+ = 472.3; [M - HCl + Na]+ = 494.3; [2M - 2HCl + H]+ = 942.6; [2M - 2HCl + Na]+ = 964.6。
White solid. Yield 93%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.58 (d, J= 9.0Hz, 2H), 7.17 (d, J= 9.0Hz, 2H), 7.13 (d, J= 16.0Hz, 1H), 7.06 (d, J= 16.0Hz, 1H), 6.69 (d, J= 2.0Hz, 2H), 6.38 (t, J= 2.0Hz, 1H), 4.40-4.34 (m, 1H), 4.33-4.30 (m, 1H), 4.06-4.02 (m, 4H), 3.77-3.72 (m, 1H), 3.66 (d, J= 6.0Hz, 1H), 3.54-3.49
(m, 1H), 2.23-2.16 (m, 1H), 1.39 (t, J = 7.0 Hz, 6H), 1.08 (t, J = 7.0 Hz, 6H); 13 C-NMR (CD 3 OD, 125 MHz), δ(ppm): 168.48, 160.36, 153.58, 150.47, 139.10, 135.52, 129.06, 127.28, 127.16, 120.93, 104.77, 100.73, 66.62, 63.16, 58.48, 38.05, 30.10, 17.37, 16.62, 13.78; Mass found [M - HCl [M - HCl + Na] + = 472.3; [M - HCl + Na] + = 494.3; [2M - 2HCl + H] + = 942.6; [2M - 2HCl + Na] + = 964.6.

(E)-2-(2-アミノ-3-フェニルプロパンアミド)エチル 4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェニル)カーボネート塩酸塩(6e)
6aと同様の合成手順で19eから6eを得た。
(E)-2-(2-amino-3-phenylpropanamido)ethyl 4-(3,5-bis(methoxy-d3)styryl-d6)phenyl)carbonate hydrochloride (6e)
Following a similar synthetic procedure to 6a, 19e gave 6e.

白色固体。収率90%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.59 (d, J= 9.0 Hz, 2H), 7.39-7.36 (m, 2H), 7.32-7.29 (m, 3H), 7.18 (d, J = 9.0 Hz, 2H), 7.15 (d, J = 16.5 Hz, 1H), 7.08 (d, J = 16.5 Hz, 1H), 6.71 (d, J= 1.5 Hz, 2H), 6.40 (s, 1H), 4.27-4.19 (m, 2H), 4.06 (t, J = 7.0 Hz, 1H), 3.66-3.61 (m, 1H), 3.48-3.43 (m, 1H), 3.19 (dd, J = 7.0, 13.5 Hz, 1H), 3.08 (dd, J = 7.0, 13.5 Hz, 1H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.48, 161.14, 153.51, 150.50, 139.18, 135.50, 134.15, 129.13, 129.00, 128.71, 127.48, 127.40, 127.19, 120.92, 104.20, 99.59, 66.66, 54.41, 38.03, 37.29; Mass found [M - HCl + H]+ = 498.2; [M - HCl + Na]+ = 520.4; [2M - 2HCl + H]+ = 994.6。 White solid. Yield 90%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.59 (d, J= 9.0Hz, 2H), 7.39-7.36 (m, 2H), 7.32-7.29 (m, 3H), 7.18 (d, J = 9.0Hz, 2H), 7.15 (d, J = 16.5Hz, 1H), 7.08 (d, J = 16.5Hz, 1H), 6.71 (d, J= 1.5Hz, 2H), 6.40 (s, 1H), 4.27-4.19 (m, 2H), 4.06 (t, J = 7.0Hz, 1H), 3.66-3.61 (m, 1H), 3.48-3.43 (m, 1H), 3.19 (dd, J = 7.0, 13.5 Hz, 1H), 3.08 (dd, J = 7.0, 13.5 Hz, 1H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 168.48, 161.14, 153.51, 150.50, 139.18, 135.50, 134.15, 129.13, 129.00, 128.71, 127.48, 127.40, 127.19, 120.92, 104.20, 99.59, 66.66, 54.41, 38.03, 37.29; Mass found [M - HCl + H] + = 498.2; [M - HCl + Na] + = 520.4; [2M - 2HCl + H] + = 994.6.

(E)-2-(2-アミノ-3-フェニルプロパンアミド)エチル(4-(3,5-ジエトキシスチリル)フェニル)カーボネート塩酸塩(6f)
6aと同様の合成手順で19fから6fを得た。
(E)-2-(2-amino-3-phenylpropanamido)ethyl(4-(3,5-diethoxystyryl)phenyl)carbonate hydrochloride (6f)
Following a similar synthetic procedure to 6a, 6f was obtained from 19f.

白色固体。収率92%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.57 (d, J= 8.5 Hz, 2H), 7.38-7.35 (m, 2H), 7.32-7.29 (m, 3H), 7.17 (d, J = 8.5 Hz, 2H), 7.12 (d, J = 16.5 Hz, 1H), 7.05 (d, J = 16.5 Hz, 1H), 6.68 (d, J= 2.0 Hz, 2H), 6.38 (t, J= 2.0 Hz, 1H), 4.24-4.20 (m, 2H), 4.07-4.02 (m, 5H), 3.65-3.60 (m, 1H), 3.48-3.43 (m, 1H), 3.19 (dd, J= 7.5, 14.0 Hz, 1H), 3.08 (dd, J = 7.5, 14.0 Hz, 1H), 1.38 (t,
J = 7.5 Hz, 6H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.48, 160.36, 153.51, 150.47, 139.10, 135.52, 134.15, 129.12, 129.07, 128.71, 127.48, 127.27, 127.18, 120.91, 104.77, 100.74, 66.65, 63.16, 54.41, 38.03, 37.29, 13.78; Mass found [M - HCl + H]+ = 519.2; [2M - 2HCl + H]+ = 1037.4。
White solid. Yield 92%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.57 (d, J= 8.5Hz, 2H), 7.38-7.35 (m, 2H), 7.32-7.29 (m, 3H), 7.17 (d, J = 8.5Hz, 2H), 7.12 (d, J = 16.5Hz, 1H), 7.05 (d, J = 16.5Hz, 1H), 6.68 (d, J= 2.0Hz, 2H), 6.38 (t, J= 2.0Hz, 1H), 4.24-4.20 (m, 2H), 4.07-4.02 (m, 5H), 3.65-3.60 (m, 1H), 3.48-3.43 (m, 1H), 3.19 (dd, J = 7.5, 14.0 Hz, 1H), 3.08 (dd, J = 7.5, 14.0 Hz, 1H), 1.38 (t,
J = 7.5 Hz, 6H); 13 C-NMR (CD 3 OD, 125 MHz), δ(ppm): 168.48, 160.36, 153.51, 150.47, 139.10, 135.52, 134.15, 129.12, 129.07, 128.71, 127.48, 127.27, 127.18, 120.91, 104.77, 100.74, 66.65, 63.16, 54.41, 38.03, 37.29, 13.78; Mass found [M - HCl + H] + = 519.2; [2M - 2HCl + H] + = 1037.4.

(E)-2-(2-アミノ-3-メチルブタンアミド)エチル(4-(3,5-ジメトキシスチリル)-2-メトキシフェニル)カーボネート塩酸塩(6g)
6aと同様の合成手順で19gから6gを得た。
(E)-2-(2-amino-3-methylbutanamido)ethyl(4-(3,5-dimethoxystyryl)-2-methoxyphenyl)carbonate hydrochloride (6 g)
6g was obtained from 19g by the same synthetic procedure as for 6a.

白色固体。収率85%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.29 (d, J= 1.5 Hz, 1H), 7.17-7.13 (m, 2H), 7.12-7.07 (m, 2H), 6.73 (d, J = 2.0 Hz, 2H), 6.41 (t, J = 2.0 Hz, 1H), 4.38-4.28 (m, 2H), 3.90 (s, 3H), 3.80 (s, 6H), 3.75-3.64 (m, 2H), 3.54-3.51 (m, 1H), 2.20 (s, 1H), 1.08 (t, J= 7.0 Hz, 6H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.43, 161.14, 153.30, 151.30, 139.40, 139.18, 136.92, 129.09, 127.81, 121.97, 118.72, 110.16, 104.24, 99.61, 66.65, 58.47, 55.10, 54.39, 38.11, 30.10, 17.41, 16.63; Mass found [M - HCl + H]+ = 474.2; [M - HCl + Na]+ = 496.2; [2M - 2HCl + H]+ = 946.5; [2M - 2HCl + Na]+ = 968.5。 White solid. Yield 85%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.29 (d, J= 1.5Hz, 1H), 7.17-7.13 (m, 2H), 7.12-7.07 (m, 2H), 6.73 (d, J = 2.0Hz, 2H), 6.41 (t, J = 2.0Hz, 1H), 4.38-4.28 (m, 2H), 3.90 (s, 3H), 3.80 (s, 6H), 3.75-3.64 (m, 2H), 3.54-3.51 (m, 1H), 2.20 (s, 1H), 1.08 (t, J= 7.0Hz, 6H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 168.43, 161.14, 153.30, 151.30, 139.40, 139.18, 136.92, 129.09, 127.81, 121.97, 118.72, 110.16, 104.24, 99.61, 66.65, 58.47, 55.10, 54.39, 38.11, 30.10, 17.41, 16.63; Mass found [M - HCl + H] + = 474.2; [M - HCl + Na] + = 496.2; [2M - 2HCl + H] + = 946.5; [2M - 2HCl + Na] + = 968.5.

2-(2-アミノ-3-メチルブタンアミド)エチル(4-((1E,3E)-4-(3,5-ジメトキシフェニル)ブタ-1,3-ジエン-1-イル)フェニル)カーボネート塩酸塩(6h)
6aと同様の合成手順で19hから6hを得た。
2-(2-amino-3-methylbutanamido)ethyl (4-((1E,3E)-4-(3,5-dimethoxyphenyl)buta-1,3-dien-1-yl)phenyl)carbonate hydrochloride (6h)
Following a similar synthetic procedure to 6a, 6h was obtained from 19h.

白色固体。収率80%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.49 (d, J= 8.5 Hz, 2H), 7.14 (d, J= 8.5 Hz, 2H), 7.01-6.95 (m, 2H), 6.71-6.62 (m, 4H), 6.38 (s, 1H), 4.39-4.35 (m, 1H), 4.33-4.29 (m, 1H), 3.78 (s, 6H), 3.77-3.71 (m, 1H), 3.68 (d, J = 6.0 Hz, 1H), 3.53-3.49 (m, 1H), 2.22-2.18 (m, 1H), 1.07 (t, J = 7.0 Hz, 6H);
13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.46, 161.09, 153.56, 150.39, 139.36, 135.65, 133.01, 131.38, 129.53, 129.33, 126.99, 120.94, 104.09, 99.55, 66.62, 58.45,
54.39, 38.04, 30.09, 17.37, 16.63; Mass found [M - HCl + H]+= 469.0; [M - HCl +
Na]+ = 491.1; [2M - 2HCl + H]+ = 937.0。
White solid. Yield 80%. 1H -NMR (CD3OD , 500MHz), δ(ppm): 7.49 (d, J= 8.5Hz, 2H), 7.14 (d, J= 8.5Hz, 2H), 7.01-6.95 (m, 2H), 6.71-6.62 (m, 4H), 6.38 (s, 1H), 4.39-4.35 (m, 1H), 4.33-4.29 (m, 1H), 3.78 (s, 6H), 3.77-3.71 (m, 1H), 3.68 (d, J = 6.0Hz, 1H), 3.53-3.49 (m, 1H), 2.22-2.18 (m, 1H), 1.07 (t, J = 7.0Hz, 6H);
13C -NMR (CD3OD , 125MHz), δ(ppm): 168.46, 161.09, 153.56, 150.39, 139.36, 135.65, 133.01, 131.38, 129.53, 129.33, 126.99, 120.94, 104.09, 99.55, 66.62, 58.45,
54.39, 38.04, 30.09, 17.37, 16.63; Mass found [M - HCl + H] + = 469.0; [M - HCl +
[Na] + = 491.1; [2M - 2HCl + H] + = 937.0.

1-2-6.目的化合物7a~7fの合成
スキーム6に従って、化合物7a~7fを合成した。
1-2-6. Synthesis of target compounds 7a to 7f Compounds 7a to 7f were synthesized according to Scheme 6.

示すように、ベンジルN-(2-アミノエチル)カルバメート塩酸塩とN-Boc-アミノ酸(化合物1a、1cおよび1j)とを、EDCIおよびDMAPの存在下で反応させ、対応するアミド誘導体(化合物20a~20c)を得た。化合物20a~20cをPd/C上で水素化し、対応する化合物21a~21cを得た。一方、プテロスチルベンまたは17aをNEtの存在下でトリホスゲンで処理して対応する22a~22bを得て、これをさらに精製せずに化合物21a~21cと別々に反応させて対応する23a~23fを得た。その後、23a~23fを1,4-ジオキサン中4M HClで脱保護し、目的化合物7a~7fを得た。 As shown, benzyl N-(2-aminoethyl)carbamate hydrochloride was reacted with N-Boc-amino acids (compounds 1a, 1c and 1j) in the presence of EDCI and DMAP to give the corresponding amide derivatives (compounds 20a-20c). Compounds 20a-20c were hydrogenated over Pd/C to give the corresponding compounds 21a-21c. Meanwhile, pterostilbene or 17a was treated with triphosgene in the presence of NEt3 to give the corresponding 22a-22b, which was reacted separately with compounds 21a-21c without further purification to give the corresponding 23a-23f. 23a-23f were then deprotected with 4M HCl in 1,4-dioxane to give the target compounds 7a-7f.

スキーム6:化合物7a~7fの合成 Scheme 6: Synthesis of compounds 7a-7f

試薬および条件:(a)EDCI,DIPEA,CHCl,室温,12時間;(b)10%Pd/C,MeOH,室温,12時間;(c)トリエチルアミン,0℃から室温,1.5時間;(d)トリメチルアミン,室温,1.5時間;(e)1,4-ジオキサン中4M HCl。 Reagents and conditions: (a) EDCI, DIPEA, CH 2 Cl 2 , rt, 12 h; (b) 10% Pd/C, MeOH, rt, 12 h; (c) triethylamine, 0° C. to rt, 1.5 h; (d) trimethylamine, rt, 1.5 h; (e) 4M HCl in 1,4-dioxane.

ベンジル(2-(2-((tert-ブトキシカルボニル)アミノ)アセトアミド)エチル)カルバメート(20a)
CHCl(80mL)中のベンジル(2-アミノエチル)カルバメートHCl(8.5g,36.8mmol),Boc-Gly-OH 1a(5.3g,30.4mmol)およびDIPEA(9.5g,73.6mmol)の撹拌溶液にEDCI(8.6g,45.0mmol)を加え、反応混合物を室温にて12時間撹拌した。反応後、溶媒を減圧下で除去し、残渣をカラムクロマトグラフィー(n-ヘキサンからEA/n-ヘキサン=1/5(V/V))で精製し、目的物20a(8.0g,収率74%)を白色粉末と
して得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.33-7.30 (m, 5H), 6.86 (brs, NH), 5.56 (brs, NH), 5.07 (s, 2H), 3.71 (s, 2H), 3.37-3.30 (m, 4H), 1.42 (s, 9H).
ベンジル(2-(2-((tert-ブトキシカルボニル)アミノ)-3-メチルブタンアミド)エチル)カルバメート(20b)
20aと同様の合成手順で1cから20bを得た。
Benzyl (2-(2-((tert-butoxycarbonyl)amino)acetamido)ethyl)carbamate (20a)
To a stirred solution of benzyl(2-aminoethyl)carbamate HCl (8.5 g, 36.8 mmol), Boc-Gly-OH 1a (5.3 g, 30.4 mmol) and DIPEA (9.5 g, 73.6 mmol) in CH 2 Cl 2 (80 mL) was added EDCI (8.6 g, 45.0 mmol), and the reaction mixture was stirred at room temperature for 12 h. After the reaction, the solvent was removed under reduced pressure, and the residue was purified by column chromatography (n-hexane to EA/n-hexane=1/5 (V/V)) to obtain the target compound 20a (8.0 g, 74% yield) as a white powder. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.33-7.30 (m, 5H), 6.86 (brs, NH), 5.56 (brs, NH), 5.07 (s, 2H), 3.71 (s, 2H), 3.37-3.30 (m, 4H), 1.42 (s, 9H).
Benzyl (2-(2-((tert-butoxycarbonyl)amino)-3-methylbutanamido)ethyl)carbamate (20b)
20b was obtained from 1c via a similar synthetic procedure to 20a.

白色粉末。収率41%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.34-7.31 (m, 5H), 6.55 (brs, NH), 5.35 (brs, NH), 5.05 (s, 2H), 5.03 (brs, NH), 3.86-3.83 (m, 1H), 3.40-3.33 (m, 4H), 2.12-2.10 (m, 1H), 1.42 (s, 9H), 0.93 (d, J= 7.0 Hz, 3H), 0.88 (d, J= 7.0 Hz, 3H)。 White powder. Yield: 41%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.34-7.31 (m, 5H), 6.55 (brs, NH), 5.35 (brs, NH), 5.05 (s, 2H), 5.03 (brs , NH), 3.86-3.83 (m, 1H), 3.40-3.33 (m, 4H), 2.12-2.10 (m, 1H), 1.42 (s, 9H), 0.93 (d, J= 7.0 Hz, 3H), 0.88 (d, J= 7.0 Hz, 3H).

ベンジル(2-(2-((tert-ブトキシカルボニル)アミノ)-3-フェニルプロパンアミド)エチル)カルバメート(20c)
20aと同様の合成手順で1jから20cを得た。
Benzyl (2-(2-((tert-butoxycarbonyl)amino)-3-phenylpropanamido)ethyl)carbamate (20c)
Following a similar synthetic procedure to 20a, 20c was obtained from 1j.

白色粉末。収率48%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.36-7.18 (m, 11H), 6.18 (brs, NH), 5.07 (s, 2H), 5.04 (brs, NH), 4.26 (d, J = 7.0 Hz, 1H), 3.48-3.17 (m, 4H), 3.04-3.01 (m, 2H), 1.40 (s, 9H)。 White powder. Yield: 48%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.36-7.18 (m, 11H), 6.18 (brs, NH), 5.07 (s, 2H), 5.04 (brs, NH), 4.26 (d , J = 7.0 Hz, 1H), 3.48-3.17 (m, 4H), 3.04-3.01 (m, 2H), 1.40 (s, 9H).

tert-ブチル(2-((2-アミノエチル)アミノ)-2-オキソエチル)カルバメート(21a)
化合物20a(4.0g,11.4mm)をMeOH(50mL)に溶解させ、10%Pd/C(0.6g)で処理し、反応混合物を水素雰囲気下において室温で12時間撹拌した。反応混合物をセライトで濾過した。濾液の溶媒を蒸発させ、残渣をカラムクロマトグラフィー(CHCl/メタノール=1/19(V/V))で精製して、化合物21a(2.35g,95%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.16 (brs, NH), 5.62 (brs, NH), 3.79 (brs, 2H), 3.38-3.36 (m, 2H), 2.90-2.88 (m,
2H), 1.42 (s, 9H)。
tert-Butyl (2-((2-aminoethyl)amino)-2-oxoethyl)carbamate (21a)
Compound 20a (4.0 g, 11.4 mm) was dissolved in MeOH (50 mL) and treated with 10% Pd/C (0.6 g), and the reaction mixture was stirred at room temperature under hydrogen atmosphere for 12 hours. The reaction mixture was filtered through Celite. The solvent of the filtrate was evaporated, and the residue was purified by column chromatography (CH 2 Cl 2 /methanol = 1/19 (V/V)) to obtain compound 21a (2.35 g, 95%) as a white powder. 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 7.16 (brs, NH), 5.62 (brs, NH), 3.79 (brs, 2H), 3.38-3.36 (m, 2H), 2.90-2.88 (m,
2H), 1.42 (s, 9H).

tert-ブチル(1-((2-アミノエチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(21b)
21aと同様の合成手順で20bから21bを得た。
tert-Butyl (1-((2-aminoethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (21b)
21b was obtained from 20b via a similar synthetic procedure to 21a.

白色粉末。収率95%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 6.93 (brs, NH), 5.24 (brs, NH), 3.89-3.86 (m, 1H), 3.40-3.37 (m, 1H), 3.32-3.29 (m, 1H), 2.87-2.85 (m,
2H), 2.13-2.09 (m, 1H), 1.42 (s, 9H), 0.94 (d, J = 7.0 Hz, 3H), 0.91 (d, J= 7.0
Hz, 3H)。
White powder. Yield: 95%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 6.93 (brs, NH), 5.24 (brs, NH), 3.89-3.86 (m, 1H), 3.40-3.37 (m, 1H), 3.32 -3.29 (m, 1H), 2.87-2.85 (m,
2H), 2.13-2.09 (m, 1H), 1.42 (s, 9H), 0.94 (d, J = 7.0 Hz, 3H), 0.91 (d, J= 7.0
Hz, 3H).

tert-ブチル(1-((2-アミノエチル)アミノ)-1-オキソ-3-フェニルプロパン-2-イル)カルバメート(21c)
21aと同様の合成手順で20cから21cを得た。
tert-Butyl (1-((2-aminoethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (21c)
21c was obtained from 20c via a similar synthetic procedure to 21a.

白色粉末。収率95%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.29-7.19 (m, 5H), 6.77 (brs, NH), 5.34 (s, NH), 4.32-4.31 (m, 1H), 3.24-3.23 (m, 2H), 3.06-3.02 (m, 2H), 2.79 (s, 2H), 2.71 (s, NH2), 1.37 (s, 9H)。 White powder. Yield: 95%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.29-7.19 (m, 5H), 6.77 (brs, NH), 5.34 (s, NH), 4.32-4.31 (m, 1H), 3.24 -3.23 (m, 2H), 3.06-3.02 (m, 2H), 2.79 (s, 2H), 2.71 (s, NH2 ), 1.37 (s, 9H).

tert-ブチル(E)-(2-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)アミノ)エチル)アミノ)-2-オキソエチル)カルバメート(23a)
脱水CHCl(15ml)中のプテロスチルベン(1.41g,5.51mmol
)およびトリホスゲン(0.54g,1.82mm)の溶液に、トリエチルアミン(1.36g,13.4mmol)を0℃で滴下して加えた。反応混合物を0℃で30分間撹拌した後、室温に温め、中間体22aの溶液を得た。脱水CHCl(15ml)中の化合物21a(1.17g,5.9mmol)およびトリエチルアミン(1.36g,13.4mmol)の溶液を中間体22aの溶液に滴下して加えた。得られた混合物をさらに1.5時間撹拌した。反応後、溶媒を真空下で除去し、残渣をEAに取り込み、飽和クエン酸水溶液で洗浄した。有機層を回収し、NaSO上で乾燥させ、蒸発させた。残渣をカラムクロマトグラフィー(シリカゲル、0~67%のEtOAc/n-ヘキサン)で精製し、粗生成物を得た。粗生成物を分取HPLC(70%ACN,30%HO)で精製し、目的化合物23a(0.86g,二段階収率32%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.47 (d, J= 8.5 Hz, 2H), 7.11 (d, J= 8.5 Hz, 2H), 7.05 (d, J= 16.0 Hz, 1H), 6.96 (d, J= 16.0 Hz, 1H), 6.70 (brs, NH), 6.65 (d, J =
2.5 Hz, 2H), 6.40 (t, J = 2.5 Hz, 1H), 5.74 (brs, NH), 5.19 (brs, NH), 3.83 (s,
6H), 3.79 (d, J= 5.5 Hz, 2H), 3.50-3.46 (m, 2H), 3.43-3.40 (m, 2H), 1.44 (s, 9H). Mass found [M + Na]+ = 522.0, [2M + Na]+ = 1021.3。
tert-Butyl (E)-(2-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)amino)ethyl)amino)-2-oxoethyl)carbamate (23a)
Pterostilbene (1.41 g, 5.51 mmol) in dry CH2Cl2 ( 15 ml)
To a solution of 21a (1.17 g, 5.9 mmol) and triphosgene (0.54 g, 1.82 mm) was added triethylamine (1.36 g, 13.4 mmol) dropwise at 0° C. The reaction mixture was stirred at 0° C. for 30 min and then warmed to room temperature to give a solution of intermediate 22a. A solution of compound 21a (1.17 g, 5.9 mmol) and triethylamine (1.36 g, 13.4 mmol) in dry CH 2 Cl 2 (15 ml) was added dropwise to the solution of intermediate 22a. The resulting mixture was stirred for another 1.5 h. After the reaction, the solvent was removed under vacuum and the residue was taken up in EA and washed with saturated aqueous citric acid. The organic layer was collected, dried over Na 2 SO 4 and evaporated. The residue was purified by column chromatography (silica gel, 0-67% EtOAc/n-hexane) to give the crude product. The crude product was purified by preparative HPLC (70% ACN, 30% H2O ) to give the target compound 23a (0.86 g, 32% yield in two steps) as a white powder. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.47 (d, J= 8.5 Hz, 2H), 7.11 (d, J= 8.5 Hz, 2H), 7.05 (d, J= 16.0 Hz, 1H), 6.96 (d, J= 16.0 Hz, 1H), 6.70 (brs, NH), 6.65 (d, J =
2.5 Hz, 2H), 6.40 (t, J = 2.5 Hz, 1H), 5.74 (brs, NH), 5.19 (brs, NH), 3.83 (s,
6H), 3.79 (d, J= 5.5 Hz, 2H), 3.50-3.46 (m, 2H), 3.43-3.40 (m, 2H), 1.44 (s, 9H). Mass found [M + Na] + = 522.0, [2M + Na] + = 1021.3.

tert-ブチル(E)-(2-((2-(((4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェノキシ)カルボニル)アミノ)エチル)アミノ)-2-オキソエチル)カルバメート(23b)
23aと同様の合成手順で21aおよび22bから23bを得た。
tert-Butyl (E)-(2-((2-(((4-(3,5-bis(methoxy-d3)styryl-d6)phenoxy)carbonyl)amino)ethyl)amino)-2-oxoethyl)carbamate (23b)
23b was obtained from 21a and 22b via a similar synthetic procedure to 23a.

白色粉末。収率27%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.11 (d, J= 8.5 Hz, 2H), 7.05 (d, J= 16.0 Hz, 1H), 6.96 (d, J= 16.0 Hz, 1H), 6.69 (brs, NH), 6.65 (d, J = 2.0 Hz, 2H), 6.39 (t, J = 2.0 Hz, 1H), 5.73 (brs, NH), 5.19 (brs, NH), 3.79 (d, J = 5.5 Hz, 2H) , 3.49-3.47 (m, 2H), 3.43-3.40 (m, 2H), 1.44 (s, 9H). Mass found [M + Na]+ = 528.2, [2M + Na]+ = 1033.4。 White powder. Yield 27%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.11 (d, J= 8.5 Hz, 2H), 7.05 (d, J= 16.0 Hz, 1H), 6.96 (d, J= 16.0 Hz, 1H), 6.69 (brs, NH), 6.65 (d, J = 2.0 Hz, 2H), 6.39 (t, J = 2.0 Hz, 1H), 5.73 (brs, NH), 5.19 (brs, NH), 3.79 (d, J = 5.5 Hz, 2H), 3.49-3.47 (m, 2H), 3.43-3.40 (m, 2H), 1.44 (s, 9H). Mass found [M + Na] + = 528.2, [2M + Na] + = 1033.4.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)アミノ)エチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(23c)
23aと同様の合成手順で21bおよび22aから23cを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)amino)ethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (23c)
23c was obtained from 21b and 22a via a similar synthetic procedure to 23a.

白色粉末。収率18%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.10 (d, J= 8.5 Hz, 2H), 7.05 (d, J= 16.0 Hz, 1H), 6.97 (d, J= 16.0 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.52 (brs, NH), 6.40 (t, J = 2.0 Hz, 1H), 5.77 (brs, NH), 5.03 (brs, NH), 3.87-3.85 (m, 1H), 3.83 (s, 6H), 3.47-3.41 (m, 4H), 2.18-2.16
(m, 1H) 1.45 (s, 9H), 0.97 (d, J = 7.0 Hz, 3H), 0.93 (d, J= 7.0 Hz, 3H). Mass found [M - Boc + H]+ = 443.3; [M + H]+ = 543.4; [M + Na]+ = 565.3。
White powder. Yield 18%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.10 (d, J= 8.5 Hz, 2H), 7.05 (d, J= 16.0 Hz, 1H), 6.97 (d, J= 16.0 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.52 (brs, NH), 6.40 (t, J = 2.0 Hz, 1H), 5.77 (brs, NH), 5.03 (brs, NH), 3.87-3.85 (m, 1H), 3.83 (s, 6H), 3.47-3.41 (m, 4H), 2.18-2.16
(m, 1H) 1.45 (s, 9H), 0.97 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H). Mass found [M - Boc + H] + = 443.3; [M + H] + = 543.4; [M + Na] + = 565.3.

tert-ブチル(E)-(1-((2-(((4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェノキシ)カルボニル)アミノ)エチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(23d)
23aと同様の合成手順で21bおよび22bから23dを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-bis(methoxy-d3)styryl-d6)phenoxy)carbonyl)amino)ethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (23d)
Following a similar synthetic procedure to 23a, 23d was obtained from 21b and 22b.

白色粉末。収率28%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.11 (d, J= 8.5 Hz, 2H), 7.06 (d, J= 16.0 Hz, 1H), 6.97 (d, J= 16.0 Hz, 1H), 6.65 (d, J= 2.0 Hz, 2H), 6.47 (brs, NH), 6.39 (t, J = 2.5Hz, 1H), 5.73 (brs, NH), 5.00 (brs, NH), 3.87-3.84 (m, 1H) , 3.52-3.42 (m, 4H), 2.17-2.14 (m, 2H), 1.45
(s, 9H), 0.98 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H). Mass found [M + Na]+ = 570.3, [2M + Na]+ = 1117.6。
White powder. Yield 28%. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.48 (d, J= 8.5Hz, 2H), 7.11 (d, J= 8.5Hz, 2H), 7.06 (d, J= 16.0Hz, 1H), 6.97 (d, J= 16.0Hz, 1H), 6.65 (d, J= 2.0Hz, 2H), 6.47 (brs, NH), 6.39 (t, J = 2.5Hz, 1H), 5.73 (brs, NH), 5.00 (brs, NH), 3.87-3.84 (m, 1H), 3.52-3.42 (m, 4H), 2.17-2.14 (m, 2H), 1.45
(s, 9H), 0.98 (d, J = 7.0 Hz, 3H), 0.93 (d, J = 7.0 Hz, 3H). Mass found [M + Na] + = 570.3, [2M + Na] + = 1117.6.

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)アミノ)エチル)アミノ)-1-オキソ-3-フェニルプロパン-2-イル)カルバメート(23e)
23aと同様の合成手順で21cおよび22aから23eを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)amino)ethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (23e)
Following a similar synthetic procedure to 23a, 23e was obtained from 21c and 22a.

白色粉末。収率27%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.35-7.27 (m, 3H), 7.23-7.22 (m, 2H), 7.11 (d, J = 8.5 Hz, 2H), 7.06 (d, J = 16.0 Hz, 1H), 6.97 (d, J = 16.0 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 6.15 (brs, NH), 5.42 (brs, NH), 5.03 (brs, NH), 4.31-4.26 (m, 1H), 3.81 (s, 6H), 3.38-3.33 (m, 2H), 3.31-3.25 (m, 2H), 3.11-3.03 (m, 2H), 1.45 (s, 9H). Mass found [M - Boc + H]+ = 491.0; [M + H]+= 591.4; [M + Na]+ = 613.3。 White powder. Yield 27%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.35-7.27 (m, 3H), 7.23-7.22 (m, 2H), 7.11 (d, J = 8.5 Hz, 2H), 7.06 (d, J = 16.0 Hz, 1H), 6.97 (d, J = 16.0 Hz, 1H), 6.66 (d, J= 2.0 Hz, 2H), 6.40 (t, J= 2.0 Hz, 1H), 6.15 (brs, NH), 5.42 (brs, NH), 5.03 (brs, NH), 4.31-4.26 (m, 1H), 3.81 (s, 6H), 3.38-3.33 (m, 2H), 3.31-3.25 (m, 2H), 3.11-3.03 (m, 2H), 1.45 (s, 9H). Mass found [M - Boc + H] + = 491.0; [M + H] + = 591.4; [M + Na] + = 613.3.

tert-ブチル(E)-(1-((2-(((4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェノキシ)カルボニル)アミノ)エチル)アミノ)-1-オキソ-3-フェニルプロパン-2-イル)カルバメート(23f)
23aと同様の合成手順で21cおよび22bから23fを得た。
tert-Butyl (E)-(1-((2-(((4-(3,5-bis(methoxy-d3)styryl-d6)phenoxy)carbonyl)amino)ethyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (23f)
Following a similar synthetic procedure to 23a, 23f was obtained from 21c and 22b.

白色粉末。収率30%。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.34-7.27 (m, 3H), 7.25-7.22 (m, 2H), 7.10 (d, J = 8.5 Hz, 2H), 7.06 (d, J = 16.0 Hz, 1H), 6.97 (d, J = 16.0 Hz, 1H), 6.65 (d, J= 2.0 Hz, 2H), 6.39 (t, J= 2.0 Hz, 1H), 6.19 (brs, NH), 5.44 (brs, NH), 5.05 (brs, NH), 4.31-4.27 (m, 1H), 3.38-3.33 (m, 2H), 3.32-3.24 (m, 2H), 3.11-3.03 (m, 2H), 1.41 (s, 9H). Mass found [M - Boc + H]+ = 497.3; [M + H]+ = 597.4; [M + Na]+ = 619.5; [2M + H]+ = 1192.9;
[2M + Na]+ = 1214.8。
White powder. Yield 30%. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.48 (d, J= 8.5 Hz, 2H), 7.34-7.27 (m, 3H), 7.25-7.22 (m, 2H), 7.10 (d, J = 8.5 Hz, 2H), 7.06 (d, J = 16.0 Hz, 1H), 6.97 (d, J = 16.0 Hz, 1H), 6.65 (d, J= 2.0 Hz, 2H), 6.39 (t, J= 2.0 Hz, 1H), 6.19 (brs, NH), 5.44 (brs, NH), 5.05 (brs, NH), 4.31-4.27 (m, 1H), 3.38-3.33 (m, 2H), 3.32-3.24 (m, 2H), 3.11-3.03 (m, 2H), 1.41 (s, 9H). Mass found [M - Boc + H] + = 497.3; [M + H] + = 597.4; [M + Na] + = 619.5; [2M + H] + = 1192.9;
[2M + Na] + = 1214.8.

(E)-4-(3,5-ジメトキシスチリル)フェニル(2-(2-アミノアセトアミド)エチル)カルバメート塩酸塩(7a)
DCM(10mL)中の化合物23a(760mg,1.5mmol)の撹拌溶液に1,4-ジオキサン(7.60mL)中の4M HClを加え、混合物を室温で3時間撹拌した。反応混合物を蒸発させ、分取HPLC精製にかけた(バッファーとしてTFA、詳細なグラジエント溶出は下記情報を参照のこと)。その後、水性画分を濃塩酸数滴で処理し、凍結乾燥して化合物7a(614mg、収率93%)を白色固体として得た。1H-NMR
(CD3OD, 500 MHz), δ(ppm): 7.55 (d, J= 8.0 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.10 (d, J= 8.0 Hz, 2H), 7.05 (d, J= 16.5 Hz, 1H), 6.70 (d, J= 2.0 Hz, 2H), 6.40 (s, 1H), 3.80 (s, 6H), 3.42-3.40 (m, 2H), 3.35-3.31 (m, 4H); 13C-NMR (CD3OD, 125
MHz), δ(ppm): 166.19, 161.13, 155.99, 150.61, 139.31, 134.66, 128.46, 127.67, 127.01, 121.56, 104.16, 99.52, 54.40, 40.10, 39.94, 39.12; Mass found [M - HCl +
H]+= 400.2; [2M - 2HCl + H]+ = 799.3。
(E)-4-(3,5-dimethoxystyryl)phenyl(2-(2-aminoacetamido)ethyl)carbamate hydrochloride (7a)
To a stirred solution of compound 23a (760 mg, 1.5 mmol) in DCM (10 mL) was added 4M HCl in 1,4-dioxane (7.60 mL) and the mixture was stirred at room temperature for 3 h. The reaction mixture was evaporated and subjected to preparative HPLC purification (TFA as buffer, detailed gradient elution see information below). The aqueous fraction was then treated with a few drops of concentrated hydrochloric acid and lyophilized to give compound 7a (614 mg, 93% yield) as a white solid. 1 H-NMR
( CD3OD , 500 MHz), δ(ppm): 7.55 (d, J= 8.0 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.10 (d, J= 8.0 Hz, 2H), 7.05 (d, J= 16.5 Hz, 1H), 6.70 (d, J= 2.0 Hz, 2H), 6.40 (s, 1H), 3.80 (s, 6H), 3.42-3.40 (m, 2H), 3.35-3.31 (m, 4H); 13C -NMR ( CD3OD , 125
MHz), δ(ppm): 166.19, 161.13, 155.99, 150.61, 139.31, 134.66, 128.46, 127.67, 127.01, 121.56, 104.16, 99.52, 54.40, 40.10, 39.94, 39.12; Mass found [M - HCl +
[2M - 2HCl + H] + = 400.2; [2M - 2HCl + H] + = 799.3.

カラム:Inertsil ODS-3 C18,5um,30*250mm
流量:38ml/分
溶媒A:HO中10%ACN+0.1%TFA
溶媒B:HO中90%ACN+0.1%TFA
グラジエント:
Column: Inertsil ODS-3 C18, 5um, 30*250mm
Flow rate: 38 ml/min Solvent A: 10% ACN + 0.1% TFA in H2O
Solvent B: 90% ACN + 0.1% TFA in H2O
Gradient:

(E)-4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェニル(2-(2-アミノアセトアミド)エチル)カルバメート塩酸塩(7b)
7aと同様の合成手順で23bから7bを得た。
(E)-4-(3,5-bis(methoxy-d3)styryl-d6)phenyl(2-(2-aminoacetamido)ethyl)carbamate hydrochloride (7b)
7b was obtained from 23b via a similar synthetic procedure to 7a.

白色固体。収率95%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.55 (d, J= 8.0 Hz, 2H), 7.13 (d, J= 16.5 Hz, 1H), 7.10 (d, J= 8.0 Hz, 2H), 7.05 (d, J= 16.5 Hz, 1H), 6.70 (d, J= 2.0 Hz, 2H), 6.39 (t, J= 2.0 Hz, 1H), 3.42-3.40 (m, 2H), 3.35-3.31 (m, 4H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 166.19, 161.13, 155.99, 150.61, 139.31, 134.66, 128.47, 127.66, 127.01, 121.56, 104.13, 99.50, 40.10, 39.94, 39.12; Mass found [M - HCl + H]+ = 406.3; [2M - 2HCl + H]+= 811.3。 White solid. Yield 95%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.55 (d, J= 8.0Hz, 2H), 7.13 (d, J= 16.5Hz, 1H), 7.10 (d, J= 8.0Hz, 2H), 7.05 (d, J= 16.5Hz, 1H), 6.70 (d, J= 2.0Hz, 2H), 6.39 (t, J= 2.0Hz, 1H), 3.42-3.40 (m, 2H), 3.35-3.31 (m, 4H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 166.19, 161.13, 155.99, 150.61, 139.31, 134.66, 128.47, 127.66, 127.01, 121.56, 104.13, 99.50, 40.10, 39.94, 39.12; Mass found [M - HCl + H] + = 406.3; [2M - 2HCl + H] + = 811.3.

(E)-4-(3,5-ジメトキシスチリル)フェニル(2-(2-アミノ-3-メチルブタンアミド)エチル)カルバメート塩酸塩(7c)
7aと同様の合成手順で23cから7cを得た。
(E)-4-(3,5-dimethoxystyryl)phenyl(2-(2-amino-3-methylbutanamido)ethyl)carbamate hydrochloride (7c)
7c was obtained from 23c via a similar synthetic procedure to 7a.

白色固体。収率92%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.56 (d, J= 9.0 Hz, 2H), 7.15 (d, J= 16.5 Hz, 1H), 7.09 (d, J= 9.0 Hz, 2H), 7.06 (d, J= 16.5 Hz, 1H), 6.71 (d, J= 2.5 Hz, 2H), 6.40 (t, J= 2.5 Hz, 1H), 3.80 (s, 6H), 3.61 (d, J = 5.5
Hz, 1H), 3.50-3.45 (m, 1H), 3.41-3.35 (m, 3H), 2.21-2.17 (m, 1H), 1.07 (d, J = 7.0 Hz, 3H), 1.05 (d, J = 7.0 Hz, 3H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.44, 161.13, 155.92, 150.57, 139.30, 134.67, 128.47, 127.65, 127.01, 121.54, 104.14, 99.49, 58.57, 54.37, 39.96, 38.97, 29.97, 17.51, 16.52; Mass found [M - HCl + H]+ = 443.0; [M - HCl + Na]+ = 465.2; [2M - 2HCl + H]+ = 884.5; [2M - 2HCl + Na]+ = 906.5。
White solid. Yield: 92%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.56 (d, J= 9.0Hz, 2H), 7.15 (d, J= 16.5Hz, 1H), 7.09 (d, J= 9.0Hz, 2H), 7.06 (d, J= 16.5Hz, 1H), 6.71 (d, J= 2.5Hz, 2H), 6.40 (t, J= 2.5Hz, 1H), 3.80 (s, 6H), 3.61 (d, J = 5.5
Hz, 1H), 3.50-3.45 (m, 1H), 3.41-3.35 (m, 3H), 2.21-2.17 (m, 1H), 1.07 (d, J = 7.0 Hz, 3H), 1.05 (d, J = 7.0 Hz, 3H); 13C -NMR (CD 3 OD, 125 MHz), δ(ppm): 168.44, 161.13, 155.92, 150.57, 139.30, 134.67, 128.47, 127.65, 127.01, 121.54, 104.14, 99.49, 58.57, 54.37, 39.96, 38.97, 29.97, 17.51, 16.52; Mass found [M - HCl + H] + = 443.0; [M - HCl + Na] + = 465.2; [2M - 2HCl + H] + = 884.5; [2M - 2HCl + Na] + = 906.5.

(E)-4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェニル(2-(2-アミノ-3-メチルブタンアミド)エチル)カルバメート塩酸塩(7d)
7aと同様の合成手順で23dから7dを得た。
(E)-4-(3,5-bis(methoxy-d3)styryl-d6)phenyl(2-(2-amino-3-methylbutanamido)ethyl)carbamate hydrochloride (7d)
7d was obtained from 23d via a similar synthetic procedure to 7a.

白色固体。収率93%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.55 (d, J= 8.5 Hz, 2H), 7.14 (d, J= 16.5 Hz, 1H), 7.09 (d, J= 8.5 Hz, 2H), 7.05 (d, J= 16.5 Hz, 1H), 6.70 (d, J= 1.5 Hz, 2H), 6.39 (t, J= 1.5 Hz, 1H), 3.65 (d, J= 5.0 Hz, 1H), 3.64-3.35 (m, 4H), 2.23-2.16 (m, 1H), 1.07 (d, J = 7.0 Hz, 3H), 1.05 (d, J = 7.0 Hz, 3H);13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.45, 161.12, 155.90, 150.58, 139.31, 134.66, 128.47, 127.65, 127.01, 121.54, 104.13, 99.49, 58.57, 39.96, 38.96, 29.97, 17.51, 16.55; Mass found [M - HCl + H]+ = 448.3; [M - HCl + Na]+ = 470.2; [2M - 2HCl + Na]+ = 1149.5。 White solid. Yield 93%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.55 (d, J= 8.5Hz, 2H), 7.14 (d, J= 16.5Hz, 1H), 7.09 (d, J= 8.5Hz, 2H), 7.05 (d, J= 16.5Hz, 1H), 6.70 (d, J= 1.5Hz, 2H), 6.39 (t, J= 1.5Hz, 1H), 3.65 (d, J= 5.0Hz, 1H), 3.64-3.35 (m, 4H), 2.23-2.16 (m, 1H), 1.07 (d, J = 7.0Hz, 3H), 1.05 (d, J = 7.0Hz, 3H); 13C -NMR (CD3OD , 125MHz), δ(ppm): 168.45, 161.12, 155.90, 150.58, 139.31, 134.66, 128.47, 127.65, 127.01, 121.54, 104.13, 99.49, 58.57, 39.96, 38.96, 29.97, 17.51, 16.55; Mass found [M-HCl + H] + = 448.3; [M-HCl + Na] + = 470.2; [2M-2HCl + Na] + = 1149.5.

(E)-4-(3,5-ジメトキシスチリル)フェニル(2-(2-アミノ-3-フェニルプロパンアミド)エチル)カルバメート塩酸塩(7e)
7aと同様の合成手順で23eから7eを得た。
(E)-4-(3,5-dimethoxystyryl)phenyl(2-(2-amino-3-phenylpropanamido)ethyl)carbamate hydrochloride (7e)
7e was obtained from 23e via a similar synthetic procedure to 7a.

白色固体。収率90%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.53 (d, J= 8.5 Hz, 2H), 7.41-7.31 (m, 2H), 7.33-7.29 (m, 3H), 7.13 (d, J = 17.0 Hz, 1H), 7.09 (d, J =
8.5 Hz, 2H), 7.04 (d, J = 17.0 Hz, 1H), 6.70 (d, J= 2.0 Hz, 2H), 6.40 (s, 1H), 4.04 (t, J = 7.0 Hz, 1H), 3.80 (s, 6H), 3.75-3.57 (m, 1H), 3.40-3.34 (m, 2H), 3.28-3.20 (m, 2H), 3.08-3.04 (m, 1H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.50, 161.12, 155.91, 150.55, 139.30, 134.68, 134.31, 129.09, 128.75, 128.47, 127.65, 127.49, 127.02, 121.55, 104.15, 99.50, 54.52, 54.39, 39.84, 39.04, 37.26; Mass found [M - HCl + H]+= 491.2; [M - HCl + Na]+ = 513.3; [2M - 2HCl + H]+ = 980.5。
White solid. Yield: 90%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.53 (d, J= 8.5Hz, 2H), 7.41-7.31 (m, 2H), 7.33-7.29 (m, 3H), 7.13 ( d, J = 17.0 Hz, 1H), 7.09 (d, J =
8.5 Hz, 2H), 7.04 (d, J = 17.0 Hz, 1H), 6.70 (d, J= 2.0 Hz, 2H), 6.40 (s, 1H), 4.04 (t, J = 7.0 Hz, 1H), 3.80 (s, 6H), 3.75-3.57 (m, 1H), 3.40-3.34 (m, 2H), 3.28-3.20 (m, 2H), 3.08-3.04 (m, 1H); 13C -NMR ( CD3OD , 125 MHz), δ(ppm): 168.50, 161.12, 155.91, 150.55, 139.30, 134.68, 134.31, 129.09, 128.75, 128.47, 127.65, 127.49, 127.02, 121.55, 104.15, 99.50, 54.52, 54.39, 39.84, 39.04, 37.26; Mass found [M - HCl + H] + = 491.2; [M - HCl + Na] + = 513.3; [2M - 2HCl + H] + = 980.5.

(E)-4-(3,5-ビス(メトキシ-d3)スチリル-d6)フェニル(2-(2-アミノ-3-フェニルプロパンアミド)エチル)カルバメート塩酸塩(7f)
7aと同様の合成手順で23fから7fを得た。
(E)-4-(3,5-bis(methoxy-d3)styryl-d6)phenyl(2-(2-amino-3-phenylpropanamido)ethyl)carbamate hydrochloride (7f)
7f was obtained from 23f via a similar synthetic procedure to 7a.

白色固体。収率96%。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.53 (d, J= 9.0 Hz, 2H), 7.39-7.36 (m, 2H), 7.33-7.29 (m, 3H), 7.13 (d, J = 17.0 Hz, 1H), 7.09 (d, J =
9.0 Hz, 2H), 7.04 (d, J = 17.0 Hz, 1H), 6.69 (d, J= 2.0 Hz, 2H), 6.39 (t, J= 2.0 Hz, 1H), 4.05 (t, J= 7.0 Hz, 1H), 3.39-3.34 (m, 2H), 3.29-3.20 (m, 3H), 3.08-3.04 (m, 1H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 168.48, 161.13, 155.89, 150.56, 139.30, 134.69, 134.31, 129.09, 128.74, 128.49, 127.64, 127.49, 127.00, 121.55, 104.14, 99.50, 54.52, 39.84, 39.04, 37.26; Mass found [M - HCl + H]+ = 496.3; [2M - 2HCl + H]+ = 991.4。
White solid. Yield: 96%. 1H -NMR ( CD3OD , 500MHz), δ(ppm): 7.53 (d, J= 9.0Hz, 2H), 7.39-7.36 (m, 2H), 7.33-7.29 (m, 3H), 7.13 ( d, J = 17.0 Hz, 1H), 7.09 (d, J =
9.0 Hz, 2H), 7.04 (d, J = 17.0 Hz, 1H), 6.69 (d, J= 2.0 Hz, 2H), 6.39 (t, J= 2.0 Hz, 1H), 4.05 (t, J= 7.0 Hz , 1H), 3.39-3.34 (m, 2H), 3.29-3.20 (m, 3H), 3.08-3.04 (m, 1H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 168.48 , 161.13, 155.89, 150.56, 139.30, 134.69, 134.31, 129.09, 128.74, 128.49, 127.64, 127.49, 127.00, 121.55, 104.14, 99.50, 54.52, 39.84, 39.04, 37.26; Mass found [M - HCl + H] + = 496.3; [2M - 2HCl + H] + = 991.4.

1-2-7.目的化合物8の合成
スキーム7において、化合物8の合成を記載した。示すように、2-ヒドロキシエチルアセテートをNEtおよびDMAPの存在下でtert-ブチルクロロジフェニルシラン(TPDPS-Cl)と反応させて化合物24を得て、これをさらにナトリウムメトキシド(NaOMe)で脱アセチル化して化合物25を得た。化合物25をEDCIおよびDMAPの存在下でBoc-Val-OH(1c)とカップリングさせて化合物26を得て、その後、TBDPS基をTBAFで脱保護して水酸化物化合物27を得た。化合物27をp-ニトロフェニルクロロホルメートと反応させ、対応する化合物28を得て、これをさらに精製せずにプテロスチルベンと反応させ、期待される炭酸塩29を得て、その後Boc基を脱保護して目的化合物8を得た。
1-2-7. Synthesis of target compound 8 In scheme 7, the synthesis of compound 8 was described. As shown, 2-hydroxyethyl acetate was reacted with tert-butylchlorodiphenylsilane (TPDPS-Cl) in the presence of NEt 3 and DMAP to give compound 24, which was further deacetylated with sodium methoxide (NaOMe) to give compound 25. Compound 25 was coupled with Boc-Val-OH (1c) in the presence of EDCI and DMAP to give compound 26, after which the TBDPS group was deprotected with TBAF to give the hydroxide compound 27. Compound 27 was reacted with p-nitrophenyl chloroformate to give the corresponding compound 28, which was reacted with pterostilbene without further purification to give the expected carbonate 29, after which the Boc group was deprotected to give the target compound 8.

スキーム7:化合物8の合成 Scheme 7: Synthesis of compound 8

試薬および条件:(a)TBDPS-Cl,トリメチルアミン,DMAP,CHCl,12時間;(b)メタノール中5.4M NaOMe,MeOH,2時間;(c)Boc-Val-OH 1c,EDCI,トリエチルアミン,DMAP,CHCl,12時間;(d)THF中の1.0M TBAF,THF,1時間,72%;(e)トリエチルアミン,CHCl,0℃;(f)DMAP,ACN,50℃;(g)1,4-ジオキサン中の4M HCl,3時間。 Reagents and conditions: (a) TBDPS-Cl, trimethylamine, DMAP, CH 2 Cl 2 , 12 hours; (b) 5.4 M NaOMe in methanol, MeOH, 2 hours; (c) Boc-Val-OH 1c, EDCI, triethylamine, DMAP, CH 2 Cl 2 , 12 hours; (d) 1.0 M TBAF in THF, THF, 1 hour, 72%; (e) triethylamine, CH 2 Cl 2 , 0° C.; (f) DMAP, ACN, 50° C.; (g) 4 M HCl in 1,4-dioxane, 3 hours.

2-((tert-ブチルジフェニルシリル)オキシ)エチルアセテート(24)
CHCl(25mL)中の2-ヒドロキシエチルアセテート(3.12g,30.0mmol)の撹拌溶液にtert-ブチルクロロジフェニルシラン(TBDPS-Cl)(8.65g,31.5mmol),EtN(4.6mL,33.0mmol)およびDMAP(110mg,0.9mmol)を加え、出発原料が完全に消費されるまで(12時間)、室温で撹拌した。反応混合物をCHCl(25mL)で希釈し、水(25mL)で洗浄した。有機層を乾燥させ(NaSO)、濾過し、蒸発させた。残渣をフラッシュクロマトグラフィー(シリカゲル、0%~2%のEtOAc/n-ヘキサン)に供し、化合物24を無色オイルとして得た(4.59g,収率43%)。1H-NMR (500 MHz, CDCl3), δ(ppm): 7.69-7.67 (m, 4H), 7.43-7.37 (m, 6H), 4.18 (t, J = 4.5 Hz,
2H), 3.85 (t, J = 4.5 Hz, 2H), 2.03 (s, 3H), 1.06 (s, 9H)。
2-((tert-butyldiphenylsilyl)oxy)ethyl acetate (24)
To a stirred solution of 2-hydroxyethyl acetate (3.12 g, 30.0 mmol) in CH 2 Cl 2 (25 mL) were added tert-butylchlorodiphenylsilane (TBDPS-Cl) (8.65 g, 31.5 mmol), Et 3 N (4.6 mL, 33.0 mmol) and DMAP (110 mg, 0.9 mmol) and stirred at room temperature until the starting material was completely consumed (12 h). The reaction mixture was diluted with CH 2 Cl 2 (25 mL) and washed with water (25 mL). The organic layer was dried (Na 2 SO 4 ), filtered and evaporated. The residue was subjected to flash chromatography (silica gel, 0% to 2% EtOAc/n-hexane) to give compound 24 as a colorless oil (4.59 g, 43% yield). 1H -NMR (500 MHz, CDCl3 ), δ(ppm): 7.69-7.67 (m, 4H), 7.43-7.37 (m, 6H), 4.18 (t, J = 4.5 Hz,
2H), 3.85 (t, J = 4.5 Hz, 2H), 2.03 (s, 3H), 1.06 (s, 9H).

2-((tert-ブチルジフェニルシリル)オキシ)エタノール(25)
MeOH(100mL)中の化合物24(4589mg,13.4mmol)の撹拌溶液に、MeOH中5.4Mナトリウムメトキシド(4.96mL,26.8mmol)を滴下して加えた。混合物を室温で2時間撹拌した。溶媒を真空中で蒸発させ、残渣をフラッシュクロマトグラフィー(シリカゲル、0~17%のEtOAc/n-ヘキサン)に供して、化合物25を無色オイルとして得た(4.00g、収率99%)。1H-NMR (500 MH
z, CDCl3), δ(ppm): 7.71-7.67 (m, 4H), 7.45-7.37 (m, 6H), 3.77 (t, J = 4.5 Hz, 2H), 3.68 (t, J = 4.5 Hz, 2H), 1.58 (brs, OH, 1H), 1.05 (s, 9H)。
2-((tert-butyldiphenylsilyl)oxy)ethanol (25)
To a stirred solution of compound 24 (4589 mg, 13.4 mmol) in MeOH (100 mL) was added dropwise 5.4 M sodium methoxide in MeOH (4.96 mL, 26.8 mmol). The mixture was stirred at room temperature for 2 h. The solvent was evaporated in vacuo and the residue was subjected to flash chromatography (silica gel, 0-17% EtOAc/n-hexane) to give compound 25 as a colorless oil (4.00 g, 99% yield). 1 H-NMR (500 MH
z, CDCl3 ), δ(ppm): 7.71-7.67 (m, 4H), 7.45-7.37 (m, 6H), 3.77 (t, J = 4.5 Hz, 2H), 3.68 (t, J = 4.5 Hz, 2H), 1.58 (brs, OH, 1H), 1.05 (s, 9H).

2-((tert-ブチルジフェニルシリル)オキシ)エチル 2-((tert-ブトキシカルボニル)アミノ)-3-メチルブタノエート(26)
CHCl(100mL)中の化合物25(2871mg,9.6mmol),Boc-Val-OH 1c(2076mg,9.6mmol)およびNEt(1598uL,11.5mmol)の撹拌溶液に、EDCI(2198mg,11.5mmol)およびDMAP(350mg,2.9mmol)を添加した。反応混合物を室温で12時間撹拌した。反応後、溶媒を真空除去し、残渣をカラムクロマトグラフィー(シリカゲル、0~5%EtOAc/n-ヘキサン)で精製し、目的生成物26(2719mg,収率57%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.67-7.66 (m, 4H),
7.44-7.26 (m, 6H), 5.03 (d, J = 8.5 Hz, NH, 1H), 4.25-4.11 (m, 3H), 3.88-3.85 (m, 2H), 2.15-2.04 (m, 1H), 1.44 (s, 9H), 1.04 (s, 9H), 0.94 (d, J = 6.5 Hz, 3H),
0.89 (d, J= 6.5 Hz, 3H)。
2-((tert-butyldiphenylsilyl)oxy)ethyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate (26)
To a stirred solution of compound 25 (2871 mg, 9.6 mmol), Boc-Val-OH 1c (2076 mg, 9.6 mmol) and NEt 3 (1598 uL, 11.5 mmol) in CH 2 Cl 2 (100 mL), EDCI (2198 mg, 11.5 mmol) and DMAP (350 mg, 2.9 mmol) were added. The reaction mixture was stirred at room temperature for 12 h. After the reaction, the solvent was removed in vacuum and the residue was purified by column chromatography (silica gel, 0-5% EtOAc/n-hexane) to give the desired product 26 (2719 mg, 57% yield) as a white powder. 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 7.67-7.66 (m, 4H),
7.44-7.26 (m, 6H), 5.03 (d, J = 8.5 Hz, NH, 1H), 4.25-4.11 (m, 3H), 3.88-3.85 (m, 2H), 2.15-2.04 (m, 1H), 1.44 (s, 9H), 1.04 (s, 9H), 0.94 (d, J = 6.5 Hz, 3H),
0.89 (d, J= 6.5 Hz, 3H).

2-ヒドロキシエチル 2-((tert-ブトキシカルボニル)アミノ)-3-メチルブタノエート(27)
THF(25mL)中の化合物26(2719mg,5.4mmol)の撹拌溶液に、THF中の1.0M TBAF(10.88mL,10.9mmol)を滴下して加えた。反応混合物を室温で1時間撹拌した。反応後、溶媒を真空除去し、残渣をカラムクロマトグラフィー(シリカゲル、0~30%のEtOAc/n-ヘキサン)で精製し、目的生成物27(1022mg,収率72%)を淡黄色オイルとして得た。1H-NMR (CDCl3, 500
MHz), δ(ppm): 5.00 (brs, 1H), 4.35-4.22 (m, 2H), 4.20-4.14 (m, 1H), 3.82 (s, 2H), 2.33 (brs, OH, 1H), 2.17-2.13 (m, 1H), 1.44 (s, 9H), 0.96 (d, J = 6.5 Hz, 3H), 0.93 (d, J = 6.5 Hz, 3H)。
2-Hydroxyethyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate (27)
To a stirred solution of compound 26 (2719 mg, 5.4 mmol) in THF (25 mL), 1.0 M TBAF in THF (10.88 mL, 10.9 mmol) was added dropwise. The reaction mixture was stirred at room temperature for 1 h. After the reaction, the solvent was removed in vacuo and the residue was purified by column chromatography (silica gel, 0-30% EtOAc/n-hexane) to give the desired product 27 (1022 mg, 72% yield) as a pale yellow oil. 1 H-NMR (CDCl 3 , 500
MHz), δ(ppm): 5.00 (brs, 1H), 4.35-4.22 (m, 2H), 4.20-4.14 (m, 1H), 3.82 (s, 2H), 2.33 (brs, OH, 1H), 2.17-2.13 (m, 1H), 1.44 (s, 9H), 0.96 (d, J = 6.5 Hz, 3H), 0.93 (d, J = 6.5 Hz, 3H).

(E)-2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル 2-((tert-ブトキシカルボニル)アミノ)-3-メチルブタノエート(29)
脱水CHCl(20ml)中の化合物27(1022mg,3.9mmol)の撹拌溶液にトリエチルアミン(1363ul,9.8mmol)を加え、次に30mL CHCl中の4-ニトロフェニルクロロホルメート溶液(867mg,4.3mmol)を0℃で滴下した。反応混合物を0℃で30分間撹拌した後、室温に温めた。室温でさらに4時間撹拌した後、溶媒を真空下で除去して粗中間体28を得て、これをACN(30ml)中のプテロスチルベン(1002mg,3.9mmol)およびDMAP(956mg,7.8mmol)と混合した。得られた混合物を50℃まで1時間加熱した。反応後、溶媒を真空下で除去し、残渣をEAに取り込み、飽和クエン酸水溶液で洗浄した。有機層を回収し、NaSO上で乾燥させ、蒸発させた。残渣をカラムクロマトグラフィー(シリカゲル、0~33%のEtOAc/n-ヘキサン)で精製し、粗生成物を得た。粗生成物を分取HPLC(80%ACN,20%HO)で精製し、化合物29(600mg,二段階収率28%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.17 (d, J= 8.0 Hz, 2H), 7.06 (d, J= 16.0 Hz, 1H), 6.98 (d, J= 16.0 Hz, 1H), 6.66 (s, 2H), 6.41 (s, 2H), 5.02 (d, J = 9.5 Hz, NH, 1H), 4.52-4.45 (m, 3H), 4.42-4.39 (m, 1H), 4.30-4.29 (m, 1H), 3.83 (s, 6H), 2.19-2.17 (m, 1H) 1.45 (s, 9H), 0.99 (d, J = 6.5 Hz, 3H), 0.92 (d, J= 6.5 Hz, 3H). Mass
found [M - Boc + H]+ = 445.1; [M + H]+ = 545.1, [M + Na]+ = 567.1。
(E)-2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate (29)
To a stirred solution of compound 27 (1022 mg, 3.9 mmol) in dry CH 2 Cl 2 (20 ml) was added triethylamine (1363 ul, 9.8 mmol), followed by dropwise addition of a solution of 4-nitrophenyl chloroformate (867 mg, 4.3 mmol) in 30 mL CH 2 Cl 2 at 0° C. The reaction mixture was stirred at 0° C. for 30 min and then warmed to room temperature. After stirring at room temperature for another 4 h, the solvent was removed under vacuum to give crude intermediate 28, which was mixed with pterostilbene (1002 mg, 3.9 mmol) and DMAP (956 mg, 7.8 mmol) in ACN (30 ml). The resulting mixture was heated to 50° C. for 1 h. After the reaction, the solvent was removed under vacuum and the residue was taken up in EA and washed with saturated aqueous citric acid. The organic layer was collected, dried over Na 2 SO 4 and evaporated. The residue was purified by column chromatography (silica gel, 0-33% EtOAc/n-hexane) to give the crude product, which was purified by preparative HPLC (80% ACN, 20% H 2 O) to give compound 29 (600 mg, 28% yield for two steps) as a white powder. 1H -NMR ( CDCl3 , 500MHz), δ(ppm): 7.51 (d, J= 8.0Hz, 2H), 7.17 (d, J= 8.0Hz, 2H), 7.06 (d, J= 16.0Hz, 1H), 6.98 (d, J= 16.0Hz, 1H), 6.66 (s, 2H), 6.41 (s, 2H), 5.02 (d, J = 9.5Hz, NH, 1H), 4.52-4.45 (m, 3H), 4.42-4.39 (m, 1H), 4.30-4.29 (m, 1H), 3.83 (s, 6H), 2.19-2.17 (m, 1H) 1.45 (s, 9H), 0.99 (d, J = 6.5 Hz, 3H), 0.92 (d, J= 6.5 Hz, 3H). Mass
Found [M - Boc + H] + = 445.1; [M + H] + = 545.1, [M + Na] + = 567.1.

(E)-2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)オキシ)エチル 2-アミノ-3-メチルブタノエート塩酸塩(8)
50mL丸ビンフラスコに化合物29(561mg,1.0mmol)および1,4-ジオキサン(5.16ml)中の4M HClを添加した。得られた混合物を室温で3時間撹拌した。溶媒を減圧下で除去した後、凍結乾燥し、目的生成物8を白色粉末として得た(446mg,収率90%)。1H-NMR (CDCl3, 500 MHz), δ(ppm): 8.90 (brs, NH2, HCl, 3H), 7.48 (d, J = 8.0 Hz, 2H), 7.17 (d, J = 8.0 Hz, 2H), 7.03 (d, J = 16.0 Hz, 1H), 6.96 (d, J= 16.0 Hz, 1H), 6.64 (s, 2H), 6.40 (s, 1H), 4.58-4.49 (m, 4H), 4.04 (s, 1H), 3.81 (s, 6H), 2.50 (s, 1H), 1.18-1.16 (m, 6H); 13C-NMR (CDCl3, 125 MHz), δ(ppm): 168.29, 160.99, 153.33, 150.30, 139.05, 135.34, 129.23, 127.90, 127.54, 121.30, 104.61, 100.14, 65.82, 63.39, 58.65, 55.37, 29.98, 18.35, 18.28; Mass found [M - HCl + H]+ = 445.2; [M - HCl + Na]+ = 467.2; [2M - 2HCl + H]+ = 888.6。
(E)-2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)oxy)ethyl 2-amino-3-methylbutanoate hydrochloride (8)
To a 50 mL round bottle flask was added compound 29 (561 mg, 1.0 mmol) and 4M HCl in 1,4-dioxane (5.16 ml). The resulting mixture was stirred at room temperature for 3 h. The solvent was removed under reduced pressure, followed by lyophilization to give the desired product 8 as a white powder (446 mg, 90% yield). 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 8.90 (brs, NH2 , HCl, 3H), 7.48 (d, J = 8.0 Hz, 2H), 7.17 (d, J = 8.0 Hz, 2H), 7.03 (d, J = 16.0 Hz, 1H), 6.96 (d, J = 16.0 Hz, 1H), 6.64 (s, 2H), 6.40 (s, 1H), 4.58-4.49 (m, 4H), 4.04 (s, 1H), 3.81 (s, 6H), 2.50 (s, 1H), 1.18-1.16 (m, 6H); 13C -NMR ( CDCl3 , 125 MHz), δ(ppm): 168.29, 160.99, 153.33, 150.30, 139.05, 135.34, 129.23, 127.90, 127.54, 121.30, 104.61, 100.14, 65.82, 63.39, 58.65, 55.37, 29.98, 18.35, 18.28; Mass found [M - HCl + H] + = 445.2; [M - HCl + Na] + = 467.2; [2M - 2HCl + H] + = 888.6.

1-2-8.目的化合物9の合成
スキーム8に従って、化合物9を合成した。示すように、アジ化ナトリウム(NaN)による2-ブロモエタノールの置換反応により化合物30が得られ、これをEDCI活性化によりBoc-Val-OH(1c)とカップリングしてエステル31を得て、さらにN基を水素化してアミン32とした。化合物32をp-ニトロフェニルクロロホルメートと反応させて対応するカルバメート33を得て、これをさらに精製せずにプテロスチルベンと反応させて夾雑カルバメート34を得て、その後Boc基を脱保護し、アミノ誘導体9を得た。
1-2-8. Synthesis of target compound 9 Compound 9 was synthesized according to scheme 8. As shown, the displacement reaction of 2-bromoethanol with sodium azide (NaN 3 ) gave compound 30, which was coupled with Boc-Val-OH (1c) by EDCI activation to give ester 31, and the N 3 group was further hydrogenated to give amine 32. Compound 32 was reacted with p-nitrophenyl chloroformate to give the corresponding carbamate 33, which was reacted with pterostilbene without further purification to give the contaminated carbamate 34, which was then deprotected from the Boc group to give the amino derivative 9.

スキーム8:化合物9の合成 Scheme 8: Synthesis of compound 9

試薬および条件:(a)NaN,水,80℃,24時間;(b)Boc-Val-OH 1c,EDCI,トリエチルアミン,DMAP,CHCl,12時間;(c)H,10%Pd/C,EtOAc,MeOH,2時間;(d)トリエチルアミン,CH
Cl,0℃;(e)DMAP,ACN,50℃,1時間;(f)1,4-ジオキサン中4M HCl,3時間。
Reagents and conditions: (a) NaN 3 , water, 80° C., 24 h; (b) Boc-Val-OH 1c, EDCI, triethylamine, DMAP, CH 2 Cl 2 , 12 h; (c) H 2 , 10% Pd/C, EtOAc, MeOH, 2 h; (d) triethylamine, CH 2
Cl 2 , 0° C.; (e) DMAP, ACN, 50° C., 1 h; (f) 4M HCl in 1,4-dioxane, 3 h.

2-アジドエタノール(30)
100mLの丸底フラスコに2-ブロモエタノール(5827mg,46.6mmol)とアジ化ナトリウム(6062mg,93.3mmol)を水(50mL)に溶解した溶液を加えた。混合物を80℃で24時間撹拌した後、室温まで冷却した。この溶液を酢酸エチル(30ml×4)で抽出し,有機層をNaSOで乾燥し、濾過した。濾液の溶媒を蒸発させ、残渣をカラムクロマトグラフィー(シリカゲル、0~25%のEtOAc/n-ヘキサン)で精製し、目的化合物30を淡黄色液体として得た(3735mg,収率92%)。1H-NMR (CDCl3, 500 MHz), δ(ppm): 3.78 (d, J= 4.0 Hz, 2H), 3.45 (s, 2H), 1.86 (s, OH, 1H)。
2-Azidoethanol (30)
A solution of 2-bromoethanol (5827 mg, 46.6 mmol) and sodium azide (6062 mg, 93.3 mmol) in water (50 mL) was added to a 100 mL round-bottom flask. The mixture was stirred at 80° C. for 24 h and then cooled to room temperature. The solution was extracted with ethyl acetate (30 ml×4), and the organic layer was dried over Na 2 SO 4 and filtered. The filtrate was evaporated, and the residue was purified by column chromatography (silica gel, 0-25% EtOAc/n-hexane) to give the target compound 30 as a pale yellow liquid (3735 mg, 92% yield). 1 H-NMR (CDCl 3 , 500 MHz), δ(ppm): 3.78 (d, J= 4.0 Hz, 2H), 3.45 (s, 2H), 1.86 (s, OH, 1H).

2-アジドエチル 2-((tert-ブトキシカルボニル)アミノ)-3-メチルブタノエート(31)
CHCl(50mL)中の2-アジドエタノール30(683mg,7.9mmol),Boc-Val-OH 1c(1705mg,7.9mmol)およびNEt(1313uL,9.4mmol)の撹拌溶液に、EDCI(1805mg,9.4mmol)およびDMAP(288mg,2.4mmol)を添加した。反応混合物を室温で12時間撹拌した。反応後、溶媒を真空除去し、残渣をカラムクロマトグラフィー(シリカゲル、0~11%のEtOAc/n-ヘキサン)で精製し、目的生成物31(1527mg,収率68%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 4.99 (d, J= 6.5 Hz, NH, 1H), 4.31-4.27 (m, 3H), 3.51-3.50 (m, 2H), 2.18-2.17 (m, 1H), 1.44
(s, 9H), 0.95 (d, J= 6.5 Hz, 3H), 0.91 (d, J= 6.5 Hz, 3H)。
2-Azidoethyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate (31)
To a stirred solution of 2-azidoethanol 30 (683 mg, 7.9 mmol), Boc-Val-OH 1c (1705 mg, 7.9 mmol) and NEt 3 (1313 uL, 9.4 mmol) in CH 2 Cl 2 (50 mL) was added EDCI (1805 mg, 9.4 mmol) and DMAP (288 mg, 2.4 mmol). The reaction mixture was stirred at room temperature for 12 h. After the reaction, the solvent was removed in vacuum and the residue was purified by column chromatography (silica gel, 0-11% EtOAc/n-hexane) to give the desired product 31 (1527 mg, 68% yield) as a white powder. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 4.99 (d, J= 6.5 Hz, NH, 1H), 4.31-4.27 (m, 3H), 3.51-3.50 (m, 2H), 2.18-2.17 (m, 1H), 1.44
(s, 9H), 0.95 (d, J= 6.5 Hz, 3H), 0.91 (d, J= 6.5 Hz, 3H).

2-アミノエチル 2-((tert-ブトキシカルボニル)アミノ)-3-メチルブタノエート(32)
化合物31の1527mgを25mLのメタノールおよび25mLのEAに溶解させ、568mgの10%Pd/Cを加え、水素雰囲気下、室温で2時間撹拌した。Pd/Cを濾過し、15mLのメタノールで洗浄した。溶媒は真空下で除去した。残渣に水10mLを加えた後、凍結乾燥して生成物32をオイルとして得た(1319mg,収率95%)。1H-NMR (CDCl3, 500 MHz), δ(ppm): 5.08 (brs, NH, 1H), 4.20-4.10 (m, 1H), 3.86-3.84 (m, 1H), 3.73-3.71 (m, 1H), 3.49-3.41 (m, 1H), 3.01-2.97 (m, 1H), 2.30 (brs, NH2, 2H), 2.12 (s, 1H), 1.44 (s, 9H), 0.97-0.88 (m, 6H)。
2-Aminoethyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate (32)
1527 mg of compound 31 was dissolved in 25 mL of methanol and 25 mL of EA, and 568 mg of 10% Pd/C was added and stirred at room temperature under hydrogen atmosphere for 2 hours. Pd/C was filtered and washed with 15 mL of methanol. The solvent was removed under vacuum. 10 mL of water was added to the residue, which was then lyophilized to give product 32 as an oil (1319 mg, 95% yield). 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 5.08 (brs, NH, 1H), 4.20-4.10 (m, 1H), 3.86-3.84 (m, 1H), 3.73-3.71 (m, 1H), 3.49-3.41 (m, 1H), 3.01-2.97 (m, 1H), 2.30 (brs, NH2 , 2H), 2.12 (s, 1H), 1.44 (s, 9H), 0.97-0.88 (m, 6H).

(E)-2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)アミノ)エチル 2-((tert-ブトキシカルボニル)アミノ)-3-メチルブタノエート(34)
脱水CHCl(30ml)中の化合物32(1469mg,5.6mmol)の撹拌溶液にトリエチルアミン(1966ul,14.1mmol)を加え、次に4-ニトロフェニルクロロホルメート溶液(1251mg,6.2mmol,30mL CHCl中)を0℃で滴下して添加した。反応混合物を0℃で30分間撹拌した後、室温に温めた。室温でさらに4時間撹拌した後、溶媒を真空下で除去して粗中間体33を得て、これをACN(30ml)中のプテロスチルベン(1446mg,5.6mmol)およびDMAP(1379mg,11.3mmol)と混合した。得られた混合物を50℃に加熱して1時間反応させた。反応後、溶媒を蒸発させた。残渣をEAに取り込み、飽和クエン酸水溶液で洗浄した。有機層を回収し、NaSO上で乾燥させ、蒸発させた。残渣をカラムクロマトグラフィー(シリカゲル、0~30%のEtOAc/n-ヘキサン)で精製し、粗生成物を得た。粗生成物をさらに分取HPLC(80%ACN,20%HO)で精製し、34(320mg,収率11%,2段階)を白色粉末として得た。1H-NMR (CD
Cl3, 500 MHz), δ(ppm): 7.51 (d, J= 7.0 Hz, 2H), 7.17 (d, J= 7.0 Hz, 2H), 7.06 (d, J= 16.0 Hz, 1H), 6.99 (d, J= 16.0 Hz, 1H), 6.66 (s, 2H), 6.41 (s, 1H), 6.36 (brs, NH, 1H), 5.02 (brs, NH, 1H), 4.33 (s, 2H), 3.91 (t, J= 7.5 Hz, 1H), 3.83 (s, 6H), 3.65 (s, 2H), 2.17 (s, 1H) 1.44 (s, 9H), 0.97 (d, J = 6.5 Hz, 3H), 0.92 (d, J = 6.5 Hz, 3H). Mass found [M - Boc + H]+ = 444.3; [M + H]+= 544.3, [M + Na]+ = 566.3。
(E)-2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)amino)ethyl 2-((tert-butoxycarbonyl)amino)-3-methylbutanoate (34)
To a stirred solution of compound 32 (1469 mg, 5.6 mmol) in dry CH 2 Cl 2 (30 ml) was added triethylamine (1966 ul, 14.1 mmol), followed by dropwise addition of 4-nitrophenyl chloroformate solution (1251 mg, 6.2 mmol, in 30 mL CH 2 Cl 2 ) at 0° C. The reaction mixture was stirred at 0° C. for 30 min and then warmed to room temperature. After stirring at room temperature for another 4 h, the solvent was removed under vacuum to give crude intermediate 33, which was mixed with pterostilbene (1446 mg, 5.6 mmol) and DMAP (1379 mg, 11.3 mmol) in ACN (30 ml). The resulting mixture was heated to 50° C. and reacted for 1 h. After reaction, the solvent was evaporated. The residue was taken up in EA and washed with saturated aqueous citric acid. The organic layer was collected, dried over Na 2 SO 4 and evaporated. The residue was purified by column chromatography (silica gel, 0-30% EtOAc/n-hexane) to give the crude product. The crude product was further purified by preparative HPLC (80% ACN, 20% H 2 O) to give 34 (320 mg, 11% yield, 2 steps) as a white powder. 1 H-NMR (CD
Cl3 , 500 MHz), δ(ppm): 7.51 (d, J= 7.0 Hz, 2H), 7.17 (d, J= 7.0 Hz, 2H), 7.06 (d, J= 16.0 Hz, 1H), 6.99 (d, J= 16.0 Hz, 1H), 6.66 (s, 2H), 6.41 (s, 1H), 6.36 (brs, NH, 1H), 5.02 (brs, NH, 1H), 4.33 (s, 2H), 3.91 (t, J= 7.5 Hz, 1H), 3.83 (s, 6H), 3.65 (s, 2H), 2.17 (s, 1H) 1.44 (s, 9H), 0.97 (d, J = 6.5 Hz, 3H), 0.92 (d, J = 6.5 Hz, 3H). Mass found [M - Boc + H] + = 444.3; [M + H] + = 544.3, [M + Na] + = 566.3.

(E)-2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)アミノ)エチル 2-アミノ-3-メチルブタノエート塩酸塩(9)
50mL丸ビンフラスコに化合物34(320mg,0.6mmol)と1,4-ジオキサン中の4M HCl(2.95mL)を添加した。得られた混合物を室温で3時間撹拌した。溶媒を減圧下で除去した後、凍結乾燥し、目的生成物の化合物9を白色粉末として得た(249mg,88%)。1H-NMR (d6-DMSO, 500 MHz), δ(ppm): 8.80 (t, J= 5.0 Hz, NH, 1H), 8.22 (brs, NH2, HCl, 3H), 7.63 (d, J = 8.0 Hz, 2H), 7.28 (d, J = 16.0 Hz, 1H), 7.21 (d, J = 8.0 Hz, 2H), 7.15 (d, J= 16.0 Hz, 1H), 6.76 (d, J= 2.0 Hz, 2H), 6.41 (s, 1H), 4.30-4.27 (m, 1H), 4.24-4.20 (m, 1H), 3.76 (s, 6H), 3.64-3.60 (m, 3H), 2.10-2.06 (m, 1H), 0.95-0.90 (m, 6H); 13C-NMR (d6-DMSO, 125 MHz), δ(ppm): 168.64, 161.13, 153.35, 150.49, 139.37, 135.53, 129.37, 128.26, 128.04, 121.92, 105.00, 100.44, 67.38, 57.93, 55.69, 38.01, 30.11, 18.60, 18.37; Mass
found [M + H]+ = 444.3; [M + Na]+ = 466.3。
(E)-2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)amino)ethyl 2-amino-3-methylbutanoate hydrochloride (9)
To a 50 mL round bottle flask was added compound 34 (320 mg, 0.6 mmol) and 4 M HCl in 1,4-dioxane (2.95 mL). The resulting mixture was stirred at room temperature for 3 h. The solvent was removed under reduced pressure, followed by lyophilization to give the desired product compound 9 as a white powder (249 mg, 88%). 1H -NMR (d6-DMSO, 500 MHz), δ(ppm): 8.80 (t, J= 5.0 Hz, NH, 1H), 8.22 (brs, NH2 , HCl, 3H), 7.63 (d, J = 8.0 Hz, 2H), 7.28 (d, J = 16.0 Hz, 1H), 7.21 (d, J = 8.0 Hz, 2H), 7.15 (d, J= 16.0 Hz, 1H), 6.76 (d, J= 2.0 Hz, 2H), 6.41 (s, 1H), 4.30-4.27 (m, 1H), 4.24-4.20 (m, 1H), 3.76 (s, 6H), 3.64-3.60 (m, 3H), 2.10-2.06 (m, 1H), 0.95-0.90 (m, 6H); 13C -NMR (d6-DMSO, 125 MHz), δ(ppm): 168.64, 161.13, 153.35, 150.49, 139.37, 135.53, 129.37, 128.26, 128.04, 121.92, 105.00, 100.44, 67.38, 57.93, 55.69, 38.01, 30.11, 18.60, 18.37; Mass
Found [M+H] + = 444.3; [M+Na] + = 466.3.

1-2-9.目的化合物10の合成
スキーム9において、化合物10の合成について記載した。Boc-Val-OH(1c)のカルボン酸をN-ヒドロキシスクシンイミド(NHS)およびジシクロヘキシルカルボジイミド(DCC)で活性化すると、アミノ基を介してシステアミンが共役し、夾雑アミド35が得られた。化合物35をp-ニトロフェニルクロロホルメートと反応させて対応するp-ニトロフェニルチオカーボネート36を得て、これをさらなる精製はせずにプテロスチルベンと反応させて夾雑チオカーボネート37を得た。その後、Boc基を脱保護することにより、目的化合物10を得た。
1-2-9. Synthesis of target compound 10 In Scheme 9, the synthesis of compound 10 was described. The carboxylic acid of Boc-Val-OH (1c) was activated with N-hydroxysuccinimide (NHS) and dicyclohexylcarbodiimide (DCC) to conjugate cysteamine via the amino group to give impurity amide 35. Compound 35 was reacted with p-nitrophenyl chloroformate to give the corresponding p-nitrophenyl thiocarbonate 36, which was reacted with pterostilbene without further purification to give impurity thiocarbonate 37. The target compound 10 was then obtained by deprotecting the Boc group.

スキーム9:化合物10の合成 Scheme 9: Synthesis of compound 10

試薬および条件:(a)1.NHS,DCC,THF,24時間;2.DIPEA,CHCl,24時間;(b)DIPEA,CHCl,0℃;(c)DMAP,ACN,50℃,2時間;(d)1,4-ジオキサン中4M HCl,CHCl Reagents and conditions: (a) 1. NHS, DCC, THF, 24 h; 2. DIPEA, CH 2 Cl 2 , 24 h; (b) DIPEA, CH 2 Cl 2 , 0° C.; (c) DMAP, ACN, 50° C., 2 h; (d) 4M HCl in 1,4-dioxane, CH 2 Cl 2 .

tert-ブチル(1-((2-メルカプトエチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(35)
Boc-Val-OH 1c(3.23g,14.9mmol)のTHF(16mL)中の溶液に、NHS(1.72g,15.0mmol)およびDCC(3.1g,15.0mmol)を添加した。反応混合物を室温で24時間撹拌し、濾過した。濾液の溶媒を蒸発させ、残渣をCHCl(12mL)に取り込み、次にDIPEA(5.7g,44.2mmol)およびシステアミン塩酸塩(1.23g,15.9mmol)を加え、反応混合物を24時間撹拌した。水(5mL)を加え、反応混合物をEA(3×20mL)で抽出した。合わせた有機層を1N HCl(2×10mL)およびブライン(10mL)で洗浄した。有機相をMgSO上で乾燥し、蒸発させ、残渣をカラムクロマトグラフィー(シリカゲル、n-ヘキサン/EtOAc、(4:1、v/v))で精製して35(1.67g、収率41%)を白色固体として得た。1H-NMR (500 MHz, CDCl3), δ (ppm): 6.41 (s, 1H), 5.05 (s, 1H), 3.88-3.85 (m, 1H), 3.49-3.42 (m, 2H), 2.69-2.65 (m, 2H), 2.17-2.15 (m, 1H) 1.45 (s, 9H), 0.96 (d, J = 7.0 Hz, 3H), 0.92 (d, J = 7.0 Hz, 3H)。
tert-Butyl (1-((2-mercaptoethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (35)
To a solution of Boc-Val-OH 1c (3.23 g, 14.9 mmol) in THF (16 mL) was added NHS (1.72 g, 15.0 mmol) and DCC (3.1 g, 15.0 mmol). The reaction mixture was stirred at room temperature for 24 h and filtered. The filtrate's solvent was evaporated and the residue was taken up in CH 2 Cl 2 (12 mL), then DIPEA (5.7 g, 44.2 mmol) and cysteamine hydrochloride (1.23 g, 15.9 mmol) were added and the reaction mixture was stirred for 24 h. Water (5 mL) was added and the reaction mixture was extracted with EA (3×20 mL). The combined organic layers were washed with 1N HCl (2×10 mL) and brine (10 mL). The organic phase was dried over MgSO4 , evaporated and the residue was purified by column chromatography (silica gel, n-hexane/EtOAc, (4:1, v/v)) to give 35 (1.67 g, 41% yield) as a white solid. 1H -NMR (500 MHz, CDCl3 ), δ (ppm): 6.41 (s, 1H), 5.05 (s, 1H), 3.88-3.85 (m, 1H), 3.49-3.42 (m, 2H), 2.69-2.65 (m, 2H), 2.17-2.15 (m, 1H) 1.45 (s, 9H), 0.96 (d, J = 7.0 Hz, 3H), 0.92 (d, J = 7.0 Hz, 3H).

tert-ブチル(E)-(1-((2-(((4-(3,5-ジメトキシスチリル)フェノキシ)カルボニル)チオ)エチル)アミノ)-3-メチル-1-オキソブタン-2-イル)カルバメート(37)
脱水CHCl(40ml)中の化合物35(1.26g,4.6mmol)の撹拌溶液にDIPEA(1.78g,13.8mmol)を加え、次に10mL CHCl
中の4-ニトロフェニルクロロホルメート溶液(1.02g,5.1mmol)を0℃で滴下して加えた。反応混合物を0℃で15分間撹拌した後、室温に温めた。室温でさらに4時間撹拌した後、溶媒を真空下で除去して粗中間体36を得て、これをACN(30ml)中でプテロスチルベン(1.19g,4.7mmol)およびDMAP(1.13g,9.3mmol)と混合した。得られた混合物を50℃に2時間加熱した。反応後、溶媒を真空下で除去した。残渣をカラムクロマトグラフィー(EA/n-ヘキサン=1/5(V/V))で精製し、粗生成物を得た。粗生成物をさらに分取HPLC(80%ACN,20%HO)で精製し、目的化合物37(1.46g,収率56%)を白色粉末として得た。1H-NMR (CDCl3, 500 MHz), δ(ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.15 (d, J=
8.0 Hz, 2H), 7.05 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.5 Hz, 2H), 6.41 (t, J= 2.5Hz, 1H), 6.38 (brs, NH), 5.00 (brs, NH), 3.98-3.85 (m,
1H), 3.82 (s, 6H), 3.65-3.54 (m, 2H), 3.13-3.07 (m, 2H), 2.17-2.16 (m, 1H), 1.48 (s, 9H), 0.90 (d, J = 7.0 Hz, 3H), 0.87 (d, J = 7.0 Hz, 3H); Mass found [M - Boc + H]+ = 460.2; [M + H]+ = 560.3; [M + Na]+ = 582.3。
tert-Butyl (E)-(1-((2-(((4-(3,5-dimethoxystyryl)phenoxy)carbonyl)thio)ethyl)amino)-3-methyl-1-oxobutan-2-yl)carbamate (37)
To a stirred solution of compound 35 (1.26 g, 4.6 mmol) in dry CH 2 Cl 2 (40 mL) was added DIPEA (1.78 g, 13.8 mmol), followed by 10 mL CH 2 Cl 2 .
A solution of 4-nitrophenyl chloroformate (1.02 g, 5.1 mmol) in 2 was added dropwise at 0° C. The reaction mixture was stirred at 0° C. for 15 min and then warmed to room temperature. After stirring at room temperature for another 4 h, the solvent was removed under vacuum to give crude intermediate 36, which was mixed with pterostilbene (1.19 g, 4.7 mmol) and DMAP (1.13 g, 9.3 mmol) in ACN (30 ml). The resulting mixture was heated to 50° C. for 2 h. After the reaction, the solvent was removed under vacuum. The residue was purified by column chromatography (EA/n-hexane=1/5 (V/V)) to give the crude product. The crude product was further purified by preparative HPLC (80% ACN, 20% H 2 O) to give the target compound 37 (1.46 g, 56% yield) as a white powder. 1H -NMR ( CDCl3 , 500 MHz), δ(ppm): 7.51 (d, J= 8.0 Hz, 2H), 7.15 (d, J=
8.0 Hz, 2H), 7.05 (d, J= 16.5 Hz, 1H), 6.99 (d, J= 16.5 Hz, 1H), 6.66 (d, J= 2.5 Hz, 2H), 6.41 (t, J= 2.5Hz, 1H), 6.38 (brs, NH), 5.00 (brs, NH), 3.98-3.85 (m,
1H), 3.82 (s, 6H), 3.65-3.54 (m, 2H), 3.13-3.07 (m, 2H), 2.17-2.16 (m, 1H), 1.48 (s, 9H), 0.90 (d, J = 7.0 Hz, 3H), 0.87 (d, J = 7.0 Hz, 3H); Mass found [M - Boc + H] + = 460.2; [M + H] + = 560.3; [M + Na] + = 582.3.

(E)-S-(2-(2-アミノ-3-メチルブタンアミド)エチル)O-(4-(3,5-ジメトキシスチリル)フェニル)カルボノチオエート塩酸塩(10)
DCM(15mL)中の化合物37(805mg,1.4mmol)の撹拌溶液に1,4-ジオキサン(7.20mL)中の4M HClを加え、混合物を室温で3時間撹拌した。その後、反応溶液を蒸発させ、分取HPLC精製に供した(バッファーとしてTFA、詳細なグラジエント溶出は下記情報を参照のこと)。その後、水性画分を濃塩酸数滴で処理し、凍結乾燥して化合物10(647mg,収率91%)を白色固体として得た。1H-NMR (CD3OD, 500 MHz), δ(ppm): 7.57 (d, J= 9.0 Hz, 2H), 7.15-7.12 (m, 3H), 7.07
(d, J = 16.5 Hz, 1H), 6.70 (d, J = 2.0 Hz, 2H), 6.40 (s, 1H), 3.80 (s, 6H), 3.68-3.62 (m, 2H), 3.52-3.46 (m, 1H), 3.17-3.10 (m, 2H), 2.22-2.18 (m, 1H), 1.08 (d, J = 6.5 Hz, 3H), 1.06 (d, J= 6.5 Hz, 3H); 13C-NMR (CD3OD, 125 MHz), δ(ppm): 169.66, 168.37, 161.13, 150.53, 139.16, 135.69, 129.09, 127.38, 127.23, 121.15, 104.25, 99.66, 58.48, 54.42, 38.55, 30.22, 30.05, 17.52, 16.55; Mass found [M - HCl + H]+ = 459.2; [2M - 2HCl + H]+= 917.3。
(E) -S-(2-(2-amino-3-methylbutanamido)ethyl)O-(4-(3,5-dimethoxystyryl)phenyl)carbonothioate hydrochloride (10)
To a stirred solution of compound 37 (805 mg, 1.4 mmol) in DCM (15 mL) was added 4M HCl in 1,4-dioxane (7.20 mL) and the mixture was stirred at room temperature for 3 h. The reaction solution was then evaporated and subjected to preparative HPLC purification (TFA as buffer, detailed gradient elution see information below). The aqueous fraction was then treated with a few drops of concentrated hydrochloric acid and lyophilized to give compound 10 (647 mg, 91% yield) as a white solid. 1 H-NMR (CD 3 OD, 500 MHz), δ(ppm): 7.57 (d, J= 9.0 Hz, 2H), 7.15-7.12 (m, 3H), 7.07
(d, J = 16.5 Hz, 1H), 6.70 (d, J = 2.0 Hz, 2H), 6.40 (s, 1H), 3.80 (s, 6H), 3.68-3.62 (m, 2H), 3.52-3.46 (m, 1H), 3.17-3.10 (m, 2H), 2.22-2.18 (m, 1H), 1.08 (d, J = 6.5 Hz, 3H), 1.06 (d, J = 6.5 Hz, 3H); 13C -NMR ( CD3OD , 125MHz), δ(ppm): 169.66, 168.37, 161.13, 150.53, 139.16, 135.69, 129.09, 127.38, 127.23, 121.15, 104.25, 99.66, 58.48, 54.42, 38.55, 30.22, 30.05, 17.52, 16.55; Mass found [M - HCl + H] + = 459.2; [2M - 2HCl + H] + = 917.3.

カラム:Inertsil ODS-3 C18,5um,30*250mm
流量:38ml/分
溶媒A:HO中10%ACN+0.1%TFA
溶媒B:HO中90%ACN+0.1%TFA
グラジエント:
Column: Inertsil ODS-3 C18, 5um, 30*250mm
Flow rate: 38 ml/min Solvent A: 10% ACN + 0.1% TFA in H2O
Solvent B: 90% ACN + 0.1% TFA in H2O
Gradient:

2.インビボ試験における目的化合物の抗NAFLDおよび抗NASHについて
2-1.原料および方法
動物および実験プロトコル:4週齢の雄のC57BL/6マウスを実験動物センター(台湾、中国)から購入し、健康研究機関(台湾、中国)の機関動物管理および使用委員会が提供する手順およびガイドラインの下で維持した。ステンレス製のケージで、ペレットフードおよび水に自由にアクセスできるように維持し、温度21±2℃、12時間の明暗サイクルで飼育した。すべての実験は、中国医科大学(中国、台湾)の動物実験委員会の下で監督され、プロトコル番号(CMUIACUC-2020-117)を付与された。
2. Anti-NAFLD and anti-NASH of the target compound in in vivo test 2-1. Materials and methods Animals and experimental protocol: 4-week-old male C57BL/6 mice were purchased from the Laboratory Animal Center (Taiwan, China) and maintained under the procedures and guidelines provided by the Institutional Animal Care and Use Committee of the Health Research Institute (Taiwan, China). They were kept in stainless steel cages with free access to pellet food and water, and kept at a temperature of 21 ± 2 °C and a 12-hour light-dark cycle. All experiments were supervised under the Animal Care and Use Committee of China Medical University (Taiwan, China) and were given the protocol number (CMUIACUC-2020-117).

前記合成目的化合物(5a,5b,5c,5d,5e,5f,5g,5h,5j,5m,5p,5t,5v,5w,6a,6b,6g,7c,7e)をPG/TPSG(1:1)に溶解させた。マウスにMCD食を14日間投与した後、対照としてPG/TPSG(1:1)、およびすべての化合物の100mg/kgを1日1回、週5回、42日間経口投与した。マウスを無作為に5群に分け、以下のように処理した:(1)MCD食+PG/TPSG(2)MCD食+全化合物100mg/kg。28日後、血漿ALTおよび血漿AST濃度を測定するための採血と、H&E染色用の肝臓サンプル採取とのために、動物を犠牲にした。 The synthetic target compounds (5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5j, 5m, 5p, 5t, 5v, 5w, 6a, 6b, 6g, 7c, 7e) were dissolved in PG/TPSG (1:1). Mice were fed the MCD diet for 14 days, followed by oral administration of PG/TPSG (1:1) as a control and 100 mg/kg of all compounds once a day, 5 times a week, for 42 days. Mice were randomly divided into 5 groups and treated as follows: (1) MCD diet + PG/TPSG (2) MCD diet + 100 mg/kg of all compounds. After 28 days, animals were sacrificed for blood sampling to measure plasma ALT and plasma AST concentrations, and liver samples for H&E staining.

マウスにMCD食を14日間投与した後、DDW、並びに75、100、および150mg/kgの化合物5cを1日1回、週5回、42日間経口投与した。マウスを無作為に5群に分け、以下のように処理した:(1)シャム群(非MCD食)(2)MCD食(3)MCD食+75mg/kgの化合物5c(4)MCD食+100mg/kgの化合物5c(5)MCD食+150mg/kgの化合物5c。28日後、血漿ALT濃度および血漿AST濃度を測定するための採血と、H&E染色用の肝臓サンプル採取とのために、動物を犠牲にした。 Mice were fed the MCD diet for 14 days, followed by oral administration of DDW and 75, 100, and 150 mg/kg of compound 5c once a day, 5 times a week, for 42 days. Mice were randomly divided into 5 groups and treated as follows: (1) Sham group (non-MCD diet), (2) MCD diet, (3) MCD diet + 75 mg/kg of compound 5c, (4) MCD diet + 100 mg/kg of compound 5c, and (5) MCD diet + 150 mg/kg of compound 5c. After 28 days, animals were sacrificed for blood collection to measure plasma ALT and AST concentrations, and liver samples for H&E staining.

2-2.結果および考察
MCD食により誘発される肝脂肪症の発症に対する全化合物(5a、5b、5c、5d、5e、5f、5g、5h、5j、5m、5p、5t、5v、5w、6a、6b、6g、7c、7e)の影響を測定するために組織学研究を行った。H&E染色の結果、MCD食の摂取は、肝脂肪症、肝細胞の損傷、並びに炎症細胞の浸潤、肥大化および線維化を有意に誘発することが示された。化合物5a、5b、5c、5f、5t、6g、7c、7e、5w、5g、5d、5e、5j、5m、5p、6a、6bによる処理によって、脂肪症、炎症、肥大化、線維化が減少し、MCD食誘発の脂肪性肝炎を抑制した(表1)。
2-2. Results and Discussion Histological studies were performed to determine the effect of all compounds (5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5j, 5m, 5p, 5t, 5v, 5w, 6a, 6b, 6g, 7c, 7e) on the development of hepatic steatosis induced by MCD diet. H&E staining results showed that MCD diet intake significantly induced hepatic steatosis, hepatocyte injury, and inflammatory cell infiltration, hypertrophy, and fibrosis. Treatment with compounds 5a, 5b, 5c, 5f, 5t, 6g, 7c, 7e, 5w, 5g, 5d, 5e, 5j, 5m, 5p, 6a, and 6b reduced steatosis, inflammation, hypertrophy, and fibrosis, and suppressed MCD diet-induced steatohepatitis (Table 1).

血清中のASTおよびALTの濃度は、肝障害の指標となる。表2に示すように、MCD食を与えたマウスのASTおよびALTの血清濃度は、普通食を与えたマウスに比べ、有意に上昇した。化合物5c、5a、5b、5f、5h、5d、5mおよび5pは、用量依存的にASTおよびALTの血清濃度を有意に抑制した。 The concentrations of AST and ALT in serum are indicators of liver damage. As shown in Table 2, the serum concentrations of AST and ALT in mice fed the MCD diet were significantly increased compared to mice fed a normal diet. Compounds 5c, 5a, 5b, 5f, 5h, 5d, 5m and 5p significantly inhibited the serum concentrations of AST and ALT in a dose-dependent manner.

化合物5cは最も有望であり、さらなる評価のために選択された。MCD食によって誘発される肝脂肪症の発症に対する化合物5cの効果を測定するために、組織学的研究を行った。H-E染色の結果、MCD食の給与は、肝脂肪症、肝細胞の損傷、並びに炎症細胞の浸潤、肥大化および線維化を有意に誘発した。化合物5cによる処理によって、脂肪症、炎症、肥大化、および線維化が減少し、MCD食誘発の脂肪性肝炎を抑制した(図1、表3)。 Compound 5c was the most promising and was selected for further evaluation. Histological studies were performed to measure the effect of compound 5c on the development of hepatic steatosis induced by the MCD diet. H-E staining showed that feeding the MCD diet significantly induced hepatic steatosis, hepatocyte damage, as well as inflammatory cell infiltration, hypertrophy, and fibrosis. Treatment with compound 5c reduced steatosis, inflammation, hypertrophy, and fibrosis, and inhibited MCD diet-induced steatohepatitis (Figure 1, Table 3).

血清中のASTおよびALTの濃度は、肝障害の指標となる。表4に示すように、MCD食を与えたマウスのASTおよびALTの血清濃度は、普通食を与えたマウスに比べ、有意に上昇した。化合物5cは、ASTおよびALTの血清濃度を用量依存的に有意に抑制した。 The concentrations of AST and ALT in serum are indicators of liver damage. As shown in Table 4, the serum concentrations of AST and ALT in mice fed the MCD diet were significantly increased compared to mice fed a normal diet. Compound 5c significantly inhibited the serum concentrations of AST and ALT in a dose-dependent manner.

3.目的化合物の安定性および溶解性
3-1.化合物5a、5c、5m、5v、5w、6aおよび6bのpH1.2溶液(酵素のないUSP胃液)におけるインビトロ安定性
3-1-1.原料および方法
原料:本発明の目的化合物5a、5c、5m、5v、5w、6aおよび6b。
3. Stability and solubility of the target compounds 3-1. In vitro stability of compounds 5a, 5c, 5m, 5v, 5w, 6a and 6b in pH 1.2 solution (USP gastric fluid without enzymes) 3-1-1. Materials and methods Materials: target compounds 5a, 5c, 5m, 5v, 5w, 6a and 6b of the present invention.

試薬:pH=1.2溶液 NaCl 2.0gをHO 800mLに溶解させ、conc.HCl 7.0mLを加えた。混合物を撹拌し、2NのNaOHと、2Nの、conc.HClおよびHOにより10倍希釈したconc.HCl、とにより、pH1.2に調整し、1000mLとした。 Reagents: pH=1.2 solution 2.0 g NaCl was dissolved in 800 mL H2O and 7.0 mL conc. HCl was added. The mixture was stirred and adjusted to pH 1.2 with 2N NaOH, 2N conc. HCl and conc. HCl diluted 10 times with H2O , and made up to 1000 mL.

インビトロ実験:化合物5a、5c、5m、5v、5w、6aおよび6bを別々にpH1.2の溶液で37℃、6時間インキュベートした。サンプル採取:0時間,0.17時間,0.5時間,1時間,2時間,4時間および6時間後に、インキュベーション混合物から100mLの分量を採取し、氷冷アセトニトリル100μLおよび1μmの内部標準を含む遠心管に入れ、反応を停止させた。試料を15000rpmで10分間遠心分離し、上清をHPLCシステムに注入した。 In vitro experiments: Compounds 5a, 5c, 5m, 5v, 5w, 6a and 6b were separately incubated in pH 1.2 solution at 37°C for 6 hours. Sample collection: After 0, 0.17, 0.5, 1, 2, 4 and 6 hours, 100 mL aliquots were taken from the incubation mixture and placed in centrifuge tubes containing 100 μL ice-cold acetonitrile and 1 μM internal standard to stop the reaction. Samples were centrifuged at 15000 rpm for 10 minutes and the supernatant was injected into the HPLC system.

HPLCの方法:HPLC:Waters 1525 Binary HPLC Pump;Waters 2707 Autosampler;Waters 2487 Dual λ Absorbance Detector;カラム:XBridge Shield RP18,5μm,4.6×50mmカラム;UV検出器:305nm;温度:室温;実行時間:15.0分;移動相:A:HO中0.1%FA;B:アセトニトリル。 HPLC Method: HPLC: Waters 1525 Binary HPLC Pump; Waters 2707 Autosampler; Waters 2487 Dual λ Absorbance Detector; Column: XBridge Shield RP18, 5 μm, 4.6×50 mm column; UV detector: 305 nm; Temperature: room temperature; Run time: 15.0 min; Mobile phase: A: 0.1% FA in H 2 O; B: acetonitrile.

3-1-2.結果および考察
試験した化合物のレベルを表5で比較した。その結果、これらの試験化合物はpH=1.2溶液中で比較的安定であることを示した。6時間培養した結果、化合物5a,5c,5m,5w,6a,および6bはpH=1.2の溶液中に90%超残存していた。一方、化合物5vは84.8%のみ残存した。
3-1-2. Results and Discussion The levels of the tested compounds are compared in Table 5. The results showed that the test compounds were relatively stable in pH=1.2 solution. After 6 hours of incubation, more than 90% of compounds 5a, 5c, 5m, 5w, 6a, and 6b remained in the pH=1.2 solution. Meanwhile, only 84.8% of compound 5v remained.

結論として、インビトロ試験において、これらの目的化合物は(酵素を含まない)胃液に対して比較的安定であることが示された。時間依存の分解は観察されなかった。 In conclusion, in vitro studies have shown that these compounds are relatively stable in (enzyme-free) gastric fluids. No time-dependent degradation was observed.

3-2.化合物5cのHOへの溶解度
3-2-1.原料および方法
化合物5cの濃度はHOで40mg/mLとした。超音波処理およびボルテックスをそれぞれ30分間行った後、チューブを25℃で静置した。サンプリング時点(1、3、6、24時間)で、チューブを15,000rpmで10分間遠心分離し、上清を回収し
てアセトニトリルで適切に希釈した。サンプルはHPLCで定量した。
3-2. Solubility of Compound 5c in H 2 O 3-2-1. Materials and Methods The concentration of Compound 5c was 40 mg/mL in H 2 O. After ultrasonication and vortexing for 30 minutes each, the tube was left at 25°C. At the sampling time points (1, 3, 6, and 24 hours), the tube was centrifuged at 15,000 rpm for 10 minutes, and the supernatant was collected and appropriately diluted with acetonitrile. The samples were quantified by HPLC.

HPLCの方法:カラム:XBridge Shield RP18,5μm,4.6×50mm;UV検出器:305nm;温度:室温;注入量:10μL;実行時間:15.0分;移動相:A:HO中0.1%FA;B:アセトニトリル。 HPLC method: Column: XBridge Shield RP18, 5 μm, 4.6×50 mm; UV detector: 305 nm; Temperature: room temperature; Injection volume: 10 μL; Run time: 15.0 min; Mobile phase: A: 0.1% FA in H 2 O; B: acetonitrile.

3-2-2.結果および考察
表6および図2に示すように、24時間後の25℃におけるHOへの化合物5cの溶解度は、34mg/mLより高い。米国薬局方の基準では、化合物5cは水溶性物質と呼ばれ得る。
3-2-2. Results and Discussion As shown in Table 6 and Figure 2, the solubility of compound 5c in H 2 O at 25°C after 24 hours is higher than 34 mg/mL. According to the United States Pharmacopoeia standard, compound 5c can be called a water-soluble substance.

4.結論
本発明では、水溶性プテロスチルベンアミノ酸含有炭酸塩の一連の新規類縁体を合成した。これらの化合物はpH=1.2(酵素のない胃液のpH値)で安定であり、抗NASH活性が検討されている。合成した化合物の多くは、抗NASH/NAFLD活性を示した(表1,2参照のこと)。その中で、化合物5cが最も有望であり、さらなる評価に選ばれた。その結果、化合物5c(代表化合物)が有意な抗NASH/NAFLD活性を示すことが明らかとなった(図1、表3、表4)。
4. Conclusion In the present invention, a series of novel analogues of water-soluble pterostilbene amino acid-containing carbonate salts were synthesized. These compounds are stable at pH=1.2 (pH value of gastric juice without enzymes), and anti-NASH activity has been investigated. Many of the synthesized compounds showed anti-NASH/NAFLD activity (see Tables 1 and 2). Among them, compound 5c was the most promising and was selected for further evaluation. As a result, it was revealed that compound 5c (representative compound) showed significant anti-NASH/NAFLD activity (Figure 1, Tables 3 and 4).

本発明のプテロスチルベンアミノ酸含有炭酸塩類縁体の新規の一連の化学構造は、水溶性で、安定であり、インビボでのNAFLD/NASHの治療に有効であるため、NAFLD/NASHの治療のための新規の薬剤として開発される可能性を有する。 The novel series of chemical structures of the pterostilbene amino acid-containing carbonate analogs of the present invention are water-soluble, stable, and effective in treating NAFLD/NASH in vivo, and therefore have the potential to be developed as novel drugs for the treatment of NAFLD/NASH.

参考文献
1.FDA. Nonalcoholic Steatohepatitis with Compensated Cirrhosis: Developing Drugs for Treatment Guidance for Industry. FDA DRAFT GUIDANCE. 2019.
2.Sumida Y, Yoneda M. Current and future pharmacological therapies for NAFLD/NASH. J Gastroenterol. 2018;53(3):362-76.
3.Goldberg D, Ditah IC, Saeian K, Lalehzari M, Aronsohn A, Gorospe EC, et al. Changes in the Prevalence of Hepatitis C Virus Infection, Nonalcoholic Steatohepatitis, and Alcoholic Liver Disease Among Patients With Cirrhosis or Liver Failure
on the Waitlist for Liver Transplantation. Gastroenterology. 2017;152(5):1090-9
e1.
4.Younossi ZM, Koenig AB, Abdelatif D, Fazel Y, Henry L, Wymer M. Global epidemiology of nonalcoholic fatty liver disease-Meta-analytic assessment of prevalence, incidence, and outcomes. Hepatology. 2016;64(1):73-84.
5.Thiagarajan P, Aithal GP. Drug Development for Nonalcoholic Fatty Liver Disease: Landscape and Challenges. J Clin Exp Hepatol. 2019;9(4):515-21.
6.Wu J. [Machanism and intervention of nonalcoholic steatohepatitis-associated fibrosis]. Zhonghua Gan Zang Bing Za Zhi. 2019;27(6):415-9.
7.Kudaravalli P, John S. Nonalcoholic Fatty Liver. StatPearls. Treasure Island (FL)2019.
8.Mathews SE, Kumar RB, Shukla AP. Nonalcoholic steatohepatitis, obesity, and cardiac dysfunction. Curr Opin Endocrinol Diabetes Obes. 2018;25(5):315-20.
9.Fiorucci S, Di Giorgio C, Distrutti E. Obeticholic Acid: An Update of Its Pharmacological Activities in Liver Disorders. Handb Exp Pharmacol. 2019;256:283-95.10.Ma Z, Zhang X, Xu L, Liu D, Di S, Li W, et al. Pterostilbene: Mechanisms of its action as oncostatic agent in cell models and in vivo studies. Pharmacol Res.
2019;145:104265.
11.Akinwumi BC, Bordun KM, Anderson HD. Biological Activities of Stilbenoids. Int J Mol Sci. 2018;19(3).
12.Lange KW, Li S. Resveratrol, pterostilbene, and dementia. Biofactors. 2018;44(1):83-90.
13.Estrela JM, Ortega A, Mena S, Rodriguez ML, Asensi M. Pterostilbene: Biomedical applications. Crit Rev Clin Lab Sci. 2013;50(3):65-78.
14.Aguirre L, Palacios-Ortega S, Fernandez-Quintela A, Hijona E, Bujanda L, Portillo MP. Pterostilbene Reduces Liver Steatosis and Modifies Hepatic Fatty Acid Profile in Obese Rats. Nutrients. 2019;11(5).
15.Gomez-Zorita S, Milton-Laskibar I, Aguirre L, Fernandez-Quintela A, Xiao J, M
PP. Effects of pterostilbene on diabetes, liver steatosis and serum lipids. Curr Med Chem. 2019.
16.Ruiz MJ, Fernandez M, Pico Y, Manes J, Asensi M, Carda C, et al. Dietary administration of high doses of pterostilbene and quercetin to mice is not toxic. J Agric Food Chem. 2009;57(8):3180-6.
17.Coimbra M, Isacchi B, van Bloois L, Torano JS, Ket A, Wu X, et al. Improving solubility and chemical stability of natural compounds for medicinal use by incorporation into liposomes. Int J Pharm. 2011;416(2):433-42.
18.Kapetanovic IM, Muzzio M, Huang Z, Thompson TN, McCormick DL. Pharmacokinetics, oral bioavailability, and metabolic profile of resveratrol and its dimethylether analog, pterostilbene, in rats. Cancer Chemother Pharmacol. 2011;68(3):593-601.
19.Azzolini M, Mattarei A, La Spina M, Fanin M, Chiodarelli G, Romio M, et al. New natural amino acid-bearing prodrugs boost pterostilbene's oral pharmacokinetic and distribution profile. Eur J Pharm Biopharm. 2017;115:149-58.
20.Gonzalez-Alfonso JL, Rodrigo-Frutos D, Belmonte-Reche E, Penalver P, Poveda A, Jimenez-Barbero J, et al. Enzymatic Synthesis of a Novel Pterostilbene alpha-Glucoside by the Combination of Cyclodextrin Glucanotransferase and Amyloglucosidase. Molecules. 2018;23(6).
References
1.FDA. Nonalcoholic Steatohepatitis with Compensated Cirrhosis: Developing Drugs for Treatment Guidance for Industry. FDA DRAFT GUIDANCE. 2019.
2.Sumida Y, Yoneda M. Current and future pharmacological therapies for NAFLD/NASH. J Gastroenterol. 2018;53(3):362-76.
3.Goldberg D, Ditah IC, Saeian K, Lalehzari M, Aronsohn A, Gorospe EC, et al. Changes in the Prevalence of Hepatitis C Virus Infection, Nonalcoholic Steatohepatitis, and Alcoholic Liver Disease Among Patients With Cirrhosis or Liver Failure
on the Waitlist for Liver Transplantation. Gastroenterology. 2017;152(5):1090-9
e1.
4.Younossi ZM, Koenig AB, Abdelatif D, Fazel Y, Henry L, Wymer M. Global epidemiology of nonalcoholic fatty liver disease-Meta-analytic assessment of prevalence, incidence, and outcomes. Hepatology. 2016;64(1):73-84.
5.Thiagarajan P, Aithal GP. Drug Development for Nonalcoholic Fatty Liver Disease: Landscape and Challenges. J Clin Exp Hepatol. 2019;9(4):515-21.
6.Wu J. [Machanism and intervention of nonalcoholic steatohepatitis-associated fibrosis]. Zhonghua Gan Zang Bing Za Zhi. 2019;27(6):415-9.
7.Kudaravalli P, John S. Nonalcoholic Fatty Liver. StatPearls. Treasure Island (FL)2019.
8.Mathews SE, Kumar RB, Shukla AP. Nonalcoholic steatohepatitis, obesity, and cardiac dysfunction. Curr Opin Endocrinol Diabetes Obes. 2018;25(5):315-20.
9.Fiorucci S, Di Giorgio C, Distrutti E. Obeticholic Acid: An Update of Its Pharmacological Activities in Liver Disorders. Handb Exp Pharmacol. 2019;256:283-95.10.Ma Z, Zhang X, Xu L, Liu D, Di S, Li W, et al. Pterostilbene: Mechanisms of its action as oncostatic agent in cell models and in vivo studies. Pharmacol Res.
2019;145:104265.
11.Akinwumi BC, Bordun KM, Anderson HD. Biological Activities of Stilbenoids. Int J Mol Sci. 2018;19(3).
12.Lange KW, Li S. Resveratrol, pterostilbene, and dementia. Biofactors. 2018;44(1):83-90.
13.Estrela JM, Ortega A, Mena S, Rodriguez ML, Asensi M. Pterostilbene: Biomedical applications. Crit Rev Clin Lab Sci. 2013;50(3):65-78.
14.Aguirre L, Palacios-Ortega S, Fernandez-Quintela A, Hijona E, Bujanda L, Portillo MP. Pterostilbene Reduces Liver Steatosis and Modifies Hepatic Fatty Acid Profile in Obese Rats. Nutrients. 2019;11(5).
15. Gomez-Zorita S, Milton-Laskibar I, Aguirre L, Fernandez-Quintela A, Xiao J, M
PP. Effects of pterostilbene on diabetes, liver steatosis and serum lipids. Curr Med Chem. 2019.
16.Ruiz MJ, Fernandez M, Pico Y, Manes J, Asensi M, Carda C, et al. Dietary administration of high doses of pterostilbene and quercetin to mice is not toxic. J Agric Food Chem. 2009;57(8):3180-6.
17.Coimbra M, Isacchi B, van Bloois L, Torano JS, Ket A, Wu X, et al. Improving solubility and chemical stability of natural compounds for medicinal use by incorporation into liposomes. Int J Pharm. 2011;416(2):433-42.
18.Kapetanovic IM, Muzzio M, Huang Z, Thompson TN, McCormick DL. Pharmacokinetics, oral bioavailability, and metabolic profile of resveratrol and its dimethylether analog, pterostilbene, in rats. Cancer Chemother Pharmacol. 2011;68(3):593-601.
19.Azzolini M, Mattarei A, La Spina M, Fanin M, Chiodarelli G, Romio M, et al. New natural amino acid-bearing prodrugs boost pterostilbene's oral pharmacokinetic and distribution profile. Eur J Pharm Biopharm. 2017;115:149-58.
20.Gonzalez-Alfonso JL, Rodrigo-Frutos D, Belmonte-Reche E, Penalver P, Poveda A, Jimenez-Barbero J, et al. Enzymatic Synthesis of a Novel Pterostilbene alpha-Glucoside by the Combination of Cyclodextrin Glucanotransferase and Amyloglucosidase. Molecules. 2018;23(6).

Claims (15)

以下の式を有する化合物、またはその薬学的に許容される塩:

式中、nは1~3であり;
mは2~6であり;
Q、XおよびYはそれぞれ独立に、O、S、またはNHであり;
Ra、RbおよびRcは、それぞれ独立に、H、ハロゲン、C1~C6直鎖アルキル、C1~C6直鎖アルコキシ、C3~C6分岐アルキル、C3~C6分岐アルコキシまたはC1~C6フルオロアルコキシであり;
RdおよびReは、それぞれ独立に、H、ハロゲン、C1~C6直鎖アルキル、C1~C6直鎖アルコキシ、C3~C6分枝アルキル、C3~C6分枝アルコキシもしくはC1~C6フルオロアルコキシ、またはRdとReとが連結して環状構造を形成し、

となり、式中、jは1~3である。
A compound having the formula:

wherein n is 1 to 3;
m is 2 to 6;
Q, X and Y are each independently O, S, or NH;
Ra, Rb and Rc are each independently H, halogen, C1-C6 straight chain alkyl, C1-C6 straight chain alkoxy, C3-C6 branched alkyl, C3-C6 branched alkoxy or C1-C6 fluoroalkoxy;
Rd and Re are each independently H, halogen, C1-C6 linear alkyl, C1-C6 linear alkoxy, C3-C6 branched alkyl, C3-C6 branched alkoxy or C1-C6 fluoroalkoxy, or Rd and Re are linked to form a cyclic structure;

where j is 1 to 3.
QがOであり;XがOであり;YがNHである、請求項1に記載の化合物、またはその薬学的に許容される塩。 The compound of claim 1, or a pharma- ceutically acceptable salt thereof, wherein Q is O; X is O; and Y is NH. QがOであり;XがNHであり、YがNHである、請求項1に記載の化合物、またはその薬学的に許容される塩。 The compound of claim 1, or a pharma- ceutically acceptable salt thereof, wherein Q is O; X is NH; and Y is NH. QがOであり;XがOであり;YがOである、請求項1に記載の化合物、またはその薬学的に許容される塩。 The compound of claim 1, or a pharma- ceutically acceptable salt thereof, wherein Q is O; X is O; and Y is O. QがOであり;XがNHであり;YがOである、請求項1に記載の化合物、またはその薬学的に許容される塩。 The compound of claim 1, or a pharma- ceutically acceptable salt thereof, wherein Q is O; X is NH; and Y is O. QがOであり;XがSであり;YがNHである、請求項1に記載の化合物、またはその薬学的に許容される塩。 The compound of claim 1, or a pharma- ceutically acceptable salt thereof, wherein Q is O; X is S; and Y is NH. mが2であり;nが1または2である、請求項1~6のいずれか1項に記載の化合物、またはその薬学的に許容される塩。 The compound according to any one of claims 1 to 6, wherein m is 2; and n is 1 or 2, or a pharma- ceutically acceptable salt thereof. RaおよびRbがメトキシである、請求項1~6のいずれか1項に記載の化合物、またはその薬学的に許容される塩。 The compound according to any one of claims 1 to 6, or a pharma- ceutically acceptable salt thereof, wherein Ra and Rb are methoxy. RaおよびRbが3,5-ジメトキシである、請求項8に記載の化合物、またはその薬学的に許容される塩。 The compound according to claim 8, or a pharma- ceutically acceptable salt thereof, wherein Ra and Rb are 3,5-dimethoxy. RdがC3~C6分岐アルキルである、請求項1~6のいずれか1項に記載の化合物、またはその薬学的に許容される塩。 The compound according to any one of claims 1 to 6, wherein Rd is a C3-C6 branched alkyl, or a pharma- ceutically acceptable salt thereof. Rdがイソプロピルである、請求項10に記載の化合物、またはその薬学的に許容される塩。 The compound of claim 10, or a pharma- ceutically acceptable salt thereof, wherein Rd is isopropyl. RdとReとが連結して環構造を形成し、

となり、式中、jは1である、請求項1~6のいずれか1項に記載の化合物、またはその薬学的に許容される塩。
Rd and Re are linked to form a ring structure,

wherein j is 1, or a pharma- ceutically acceptable salt thereof.
前記薬学的に許容される塩が塩酸塩またはニコチン酸塩である、請求項1~6のいずれか1項に記載の化合物、またはその薬学的に許容される塩。 The compound according to any one of claims 1 to 6, or a pharma- ceutically acceptable salt thereof, wherein the pharma-ceutically acceptable salt is a hydrochloride or a nicotinate. 対象における非アルコール性脂肪性肝疾患を治療するための医薬組成物であって、請求項1~13のいずれか1項に記載の化合物、またはその薬学的に許容される塩の前記治療のための治療有効量を含む、医薬組成物。 A pharmaceutical composition for treating non-alcoholic fatty liver disease in a subject, comprising a therapeutically effective amount for said treatment of a compound according to any one of claims 1 to 13, or a pharma- ceutical acceptable salt thereof. 対象における非アルコール性脂肪性肝炎を治療するための医薬組成物であって、請求項1~13のいずれか1項に記載の化合物、またはその薬学的に許容される塩の前記治療のための治療有効量を含む、医薬組成物。 A pharmaceutical composition for treating non-alcoholic steatohepatitis in a subject, comprising a therapeutically effective amount for said treatment of a compound according to any one of claims 1 to 13, or a pharma- ceutical acceptable salt thereof.
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